def test_install():
console = Console(file=io.StringIO())
dh = sys.displayhook
install(console)
sys.displayhook("foo")
assert console.file.getvalue() == "'foo'\n"
assert sys.displayhook is not dh
def _read(self, stream):
status = 'unknown'
line_number = 0
for line in stream:
line_number += 1
# print(line_number, line,sep='\t', end='')
if re.match(self._identifier_node, line):
status = 'node'
continue
if re.match(self._identifier_element, line):
status = 'element'
self._process_element_identifier(line)
continue
if re.match(self._identifier, line):
status = 'unknown'
continue
if re.match(self._identifier_comment, line):
continue
try:
self._process_line(line, status)
except Exception:
sys.displayhook(sys.exc_info())
sys.stderr.write(
'Error when processing line {line_number}\n'.format(
line_number=line_number))
sys.stderr.write(line + '\n')
res = input('Continue?(Y/N)')
if res.upper() == 'Y':
continue
else:
raise
def complete_from_context(self, completion_context, old_completer_args=None):
trace = XSH.env.get("XONSH_TRACE_COMPLETIONS")
if trace:
print("\nTRACE COMPLETIONS: Getting completions with context:")
sys.displayhook(completion_context)
lprefix = 0
completions = set()
query_limit = XSH.env.get("COMPLETION_QUERY_LIMIT")
for comp in self.generate_completions(
completion_context,
old_completer_args,
trace,
):
completion, lprefix = comp
completions.add(completion)
if query_limit and len(completions) >= query_limit:
if trace:
print(
"TRACE COMPLETIONS: Stopped after $COMPLETION_QUERY_LIMIT reached."
)
break
def sortkey(s):
return s.lstrip(''''"''').lower()
# the last completer's lprefix is returned. other lprefix values are inside the RichCompletions.
return tuple(sorted(completions, key=sortkey)), lprefix
def execute(self, inputfield, output):
source = get_text(inputfield)
self.namespace['__output__'] = output
self.counter += 1
name = 'In[%s]' % self.counter
sys_backup = {}
for key, value in self.namespace_sys.items():
sys_backup[key] = getattr(sys, key)
setattr(sys, key, value)
is_expression = False
self.ans = None
self.aborted = False
ok = False
try:
try:
try:
code = compile(source, name, 'eval')
is_expression = True
except SyntaxError:
code = compile(source, name, 'exec')
sys.settrace(self.trace_fun)
self.ans = eval(code, self.namespace)
if is_expression:
sys.displayhook(self.ans)
ok = True
except Exception, e:
self.show_traceback(name)
finally:
# restore global values
sys.settrace(None)
for key, value in sys_backup.items():
self.namespace_sys[key] = getattr(sys, key)
setattr(sys, key, value)
def out_graph_show(self, col_name, process, lower, upper, df_old, df_new):
self.win = pg.GraphicsLayoutWidget(show=True)
self.win.resize(1200, 760)
self.win.setWindowTitle(col_name + " " + str(process))
plt1 = self.win.addPlot(title='Before ')
plt2 = self.win.addPlot(title='Processed ')
s1 = pg.ScatterPlotItem(pen=pg.mkPen(None),
brush=pg.mkBrush(255, 255, 255, 120))
pos = df_old[col_name]
s1.addPoints(x=pos.index, y=pos[:])
plt1.addItem(s1)
lr_low = pg.LinearRegionItem([lower, df_old[col_name].min()],
movable=False,
brush=(150, 0, 0, 150),
orientation='horizontal')
lr_low.setZValue(-10)
plt1.addItem(lr_low)
lr_upper = pg.LinearRegionItem([upper, df_old[col_name].max()],
movable=False,
brush=(150, 0, 0, 150),
orientation='horizontal')
lr_upper.setZValue(-10)
plt1.addItem(lr_upper)
s2 = pg.ScatterPlotItem(pen=pg.mkPen(None),
brush=pg.mkBrush(255, 255, 255, 120))
pos2 = df_new[col_name]
s2.addPoints(x=pos2.index, y=pos2[:])
plt2.addItem(s2)
sys.displayhook(self.win)
def edit_syntax_error(self):
"""The bottom half of the syntax error handler called in the main loop.
Loop until syntax error is fixed or user cancels.
"""
while self.SyntaxTB.last_syntax_error:
# copy and clear last_syntax_error
err = self.SyntaxTB.clear_err_state()
if not self._should_recompile(err):
return
try:
# may set last_syntax_error again if a SyntaxError is raised
self.safe_execfile(err.filename, self.user_ns)
except:
self.showtraceback()
else:
try:
f = open(err.filename)
try:
# This should be inside a display_trap block and I
# think it is.
sys.displayhook(f.read())
finally:
f.close()
except:
self.showtraceback()
def edit_syntax_error(self):
"""The bottom half of the syntax error handler called in the main loop.
Loop until syntax error is fixed or user cancels.
"""
while self.SyntaxTB.last_syntax_error:
# copy and clear last_syntax_error
err = self.SyntaxTB.clear_err_state()
if not self._should_recompile(err):
return
try:
# may set last_syntax_error again if a SyntaxError is raised
self.safe_execfile(err.filename,self.user_ns)
except:
self.showtraceback()
else:
try:
f = open(err.filename)
try:
# This should be inside a display_trap block and I
# think it is.
sys.displayhook(f.read())
finally:
f.close()
except:
self.showtraceback()
def test_init_pprint(self):
self.assertEqual(sys.displayhook.__name__, 'pprint_callback')
with patch('sys.stdout', new_callable=StringIO) as mock_stdout:
sys.displayhook(42)
sys.displayhook({'spam': 42})
self.assertEquals(
sys.stdout.getvalue(), ("%s\n"
"{%s42}\n") %
(pythonrc.blue('42'), pythonrc.purple("'spam': ")))
def pre_prompt(self, ip):
ec = self.shell.execution_count
try:
for num, result in self.delayed:
self.shell.execution_count = num
sys.displayhook(result)
self.delayed = []
finally:
self.shell.execution_count = ec
def preprocess_dataframe(self):
df = self.raw_df
# TotalCharges must be numeric
df.TotalCharges = pd.to_numeric(df.TotalCharges, errors="coerce")
# Fill NAs with 0
df.TotalCharges = df.TotalCharges.fillna(0)
# Let’s make it uniform by lowercasing everything and replacing spaces with underscores
df.columns = df.columns.str.lower().str.replace(' ', '_')
# Our target Column Churn should be numeric as well
df.churn = (df.churn == "Yes").astype(int)
displayhook(df.head().T)
print(f'Churn Values:{df.churn.value_counts()}')
return df
def pretty_print(thing):
if isinstance(thing, str):
py_print(thing)
elif not isinstance(thing, (Mapping, Sequence)) and isinstance(thing, Iterable):
sliced = []
for n, item in enumerate(thing):
if n < 5:
sliced.append(item)
else:
sliced.append(raw('...'))
break
py_print("<iterable {}>".format(repr(sliced)))
else:
sys.displayhook(thing)
def main(argv=None):
parser = ArgumentParser()
parser.add_argument('function')
parser.add_argument('args', nargs=REMAINDER)
args = parser.parse_args(argv)
try:
func = pydoc.locate(args.function)
except pydoc.ErrorDuringImport as exc:
raise exc.value from None
if func is None:
raise ImportError('Failed to locate {!r}'.format(args.function))
argparse_kwargs = (
{'prog': ' '.join(sys.argv[:2])} if argv is None else {})
retval = run(func, argv=args.args, argparse_kwargs=argparse_kwargs)
sys.displayhook(retval)
def pretty_print(thing):
if isinstance(thing, str):
py_print(thing)
elif not isinstance(thing,
(Mapping, Sequence)) and isinstance(thing, Iterable):
sliced = []
for n, item in enumerate(thing):
if n < 5:
sliced.append(item)
else:
sliced.append(raw('...'))
break
py_print("<iterable {}>".format(repr(sliced)))
else:
sys.displayhook(thing)
def pretty_print(thing):
if isinstance(thing, str):
_write(thing)
_write('\n')
elif not isinstance(thing, (Mapping, Sequence)) and isinstance(thing, Iterable):
sliced = []
for n, item in enumerate(thing):
if n < 5:
sliced.append(repr(item))
else:
sliced.append('...')
break
py_print("<iterable [{}]>".format(', '.join(sliced)))
else:
sys.displayhook(thing)
return thing
def test_init_python_printing():
original_display_hook = sys.displayhook
def new_display_hook(*_):
new_display_hook.called = True
sys.displayhook = new_display_hook
try:
_init_python_printing(str)
# check for correct overwriting of displayhook
assert getattr(sys.displayhook, 'is_sympy_displayhook', False)
# call displayhook with none-sympy object
sys.displayhook(object())
# check whether original display hook has been called
assert getattr(new_display_hook, 'called', False)
finally:
sys.displayhook = original_display_hook
def showcmd(args, stdin=None):
"""usage: showcmd [-h|--help|cmd args]
Displays the command and arguments as a list of strings that xonsh would
run in subprocess mode. This is useful for determining how xonsh evaluates
your commands and arguments prior to running these commands.
optional arguments:
-h, --help show this help message and exit
example:
>>> showcmd echo $USER can't hear "the sea"
['echo', 'I', "can't", 'hear', 'the sea']
"""
if len(args) == 0 or (len(args) == 1 and args[0] in {'-h', '--help'}):
print(showcmd.__doc__.rstrip().replace('\n ', '\n'))
else:
sys.displayhook(args)
def showcmd(args, stdin=None):
"""usage: showcmd [-h|--help|cmd args]
Displays the command and arguments as a list of strings that xonsh would
run in subprocess mode. This is useful for determining how xonsh evaluates
your commands and arguments prior to running these commands.
optional arguments:
-h, --help show this help message and exit
example:
>>> showcmd echo $USER can't hear "the sea"
['echo', 'I', "can't", 'hear', 'the sea']
"""
if len(args) == 0 or (len(args) == 1 and args[0] in {"-h", "--help"}):
print(showcmd.__doc__.rstrip().replace("\n ", "\n"))
else:
sys.displayhook(args)
def excepthook(_, error, __): if ( type(error) is not SyntaxError or error.lineno != 1 # we don't have all the code or error.text is None ): return sys.__excepthook__(type(error), error, error.__traceback__) try: result = ie_eval(error.text, globals) except SyntaxError: try: ie_exec(error.text, globals) except BaseException as error: return sys.__excepthook__(type(error), error, error.__traceback__) except BaseException as error: return sys.__excepthook__(type(error), error, error.__traceback__) else: sys.displayhook(result)
def pyevalAndDisplay(expr, *args, **kw):
"""
Evaluate expr and args, then display the result with sys.displayhook.
If the displayhook keyword is given and None, sys.displayhook is not
modified. Otherwise it is temporarily assigned to sys.displayhook
and restored before returning. It not given, it defaults to
pyeval.display.displayPretty.
"""
displayhook = kw.pop('displayhook', displayPretty)
if len(kw) > 0:
raise TypeError('pyevalAndDisplay() got unexpected keywords: %r' % (kw.keys(),))
if displayhook is None:
displayhook = sys.displayhook
with patch(sys, 'displayhook', displayhook):
result = pyeval(expr, *args)
sys.displayhook(result)
def scale_graph_show(self, col_name, process, df_old, df_new):
self.win = pg.GraphicsLayoutWidget(show=True)
self.win.resize(1200, 760)
self.win.setWindowTitle(col_name + " " + str(process))
plt1 = self.win.addPlot(title='Before ')
plt2 = self.win.addPlot(title='Processed ')
s1 = pg.ScatterPlotItem(pen=pg.mkPen(None),
brush=pg.mkBrush(255, 255, 255, 120))
pos = df_old[col_name]
s1.addPoints(x=pos.index, y=pos[:])
plt1.addItem(s1)
s2 = pg.ScatterPlotItem(pen=pg.mkPen(None),
brush=pg.mkBrush(255, 255, 255, 120))
pos2 = df_new[col_name]
s2.addPoints(x=pos2.index, y=pos2[:])
plt2.addItem(s2)
sys.displayhook(self.win)
def shell_substitute_run_ast_nodes(
self,
nodelist, cellname, interactivity='last_expr',
compiler=compile, # ignored
result=None,
):
"""
Replaces get_ipython().run_ast_nodes
"""
if not nodelist:
return
try:
result_val = self.exec_ast_nodes(nodelist)
if interactivity == 'last_expr':
sys.displayhook(result_val)
return False
except:
if result:
result.error_before_exec = sys.exc_info()[1]
self.shell.showtraceback()
return True
def perform_EDA(self, df):
# Check for null values
displayhook(df.isnull().sum())
# Check number of unique values on each categorical columns
displayhook(df[self.categorical].nunique())
# Churn Rates: calculate the risk for each category
global_mean = round(df.churn.mean(), 3)
print(f'global churn mean:{global_mean}')
for col in self.categorical:
df_group = df.groupby(by=col).churn.agg(['mean'])
df_group['diff'] = df_group['mean'] - global_mean
df_group['risk'] = df_group['mean'] / global_mean
displayhook(df_group)
def calculate_mi(series):
return mutual_info_score(series, df.churn)
# Mutual info
df_mi = df[self.categorical].apply(calculate_mi)
df_mi = df_mi.sort_values(ascending=False).to_frame(name='MI')
displayhook(df_mi)
# Correlation
displayhook(df[self.numerical].corrwith(df.churn))
def test_pprint_compact(self):
with patch('sys.stdout', new_callable=StringIO) as mock_stdout:
# - test compact pprint-ing with 80x25 terminal
with patch.object(pythonrc.subprocess, 'check_output',
return_value='25 80'):
sys.displayhook(list(range(22)))
self.assertIn('20, 21]', sys.stdout.getvalue())
sys.displayhook(list(range(23)))
self.assertIn('21,\n 22]', sys.stdout.getvalue())
# - test compact pprint-ing with resized 100x25 terminal
with patch.object(pythonrc.subprocess, 'check_output',
return_value=('25 100')):
sys.displayhook(list(range(23)))
self.assertIn('21, 22]', sys.stdout.getvalue())
def eval(self, id, control_vals, displayhook):
f, controls = self._interacts[id]
assert len(controls) == len(control_vals)
displayhook(f(*[c.eval(v) for c, v in zip(controls, control_vals)]))
def describe_data(self):
print(f'number of rows:{len(self.raw_df)}')
print(f'types :{self.raw_df}')
displayhook(self.raw_df.head().T)
# print(sys.exit(2)) # 打印程序返回代码
print(sys.version) # 打印python版本
print(sys.maxsize) # 打印最大值
print(sys.path) # 返回当前PYTHONPATH环境变量
print(sys.platform) # 返回操作系统平台名称
print(sys.stdout.write("inpu9t")) # 返回标准输出长度
# print(sys.stdin.readlin()[:-1]) # 标准输入,并分片取开头到倒数第一个(不包含)的内容
print(sys.modules.keys()) # 打印所有模块名
print(sys.modules.values()) # 打印所有模块位置
print(
sys.exc_info()) # 获取当前正在处理的异常类,exc_type、exc_value、exc_traceback当前处理的异常详细信息
print(sys.hexversion) # 获取十六进制的版本值
print(sys.api_version) # 获取Cpython API版本
print(sys.version_info) # 打印版本详细信息
print(
sys.displayhook(2)
) # 如果value非空，这个函数会把他输出到sys.stdout，并且将他保存进__builtin__._.指在python的交互式解释器里，’_’ 代表上次你输入得到的结果，hook是钩子的意思，将上次的结果钩过来
print(sys.getdefaultencoding()) # 获取当前默认编码格式
print(sys.getfilesystemencoding()) # 获取文件系统编码
print(sys.builtin_module_names) # 打印内置模块名
print(sys.executable) # 打印python解释权程序路径
print(sys.getprofile())
print(sys.getallocatedblocks())
# print(sys.copyright) # 打印python版权信息
print(sys.byteorder
) # 本地字节规则的指示器，big-endian平台的值是’big’,little-endian平台的值是’little’
# print(sys.exc_value)
print(sys.stdin) # 标准输入
print(sys.stdout) # 标准输出
print(sys.stderr) # 标准错误输出
print(sys.maxunicode) # 打印最大unicode值
def evaluate(self, statement, session, printer=None, stream=None):
"""Evaluate the statement in sessions's globals. """
# the Python compiler doesn't like network line endings
source = statement.replace('\r\n', '\n').rstrip()
# split source code into 'exec' and 'eval' parts
exec_source, eval_source = self.split(source)
try:
self.compile(eval_source, 'eval')
except (OverflowError, SyntaxError, ValueError):
exec_source, eval_source = source, None
if exec_source is not None:
exec_source += '\n'
if eval_source is not None:
eval_source += '\n'
# create a dedicated module to be used as this statement's __main__
statement_module = new.module('__main__')
# use this request's __builtin__, since it changes on each request.
# this is needed for import statements, among other things.
import __builtin__
statement_module.__builtin__ = __builtin__
# create customized display hook
stringify_func = printer or sstr
def displayhook(arg):
if arg is not None:
__builtin__._ = None
print stringify_func(arg)
__builtin__._ = arg
old_displayhook = sys.displayhook
sys.displayhook = displayhook
# swap in our custom module for __main__. then unpickle the session
# globals, run the statement, and re-pickle the session globals, all
# inside it.
old_main = sys.modules.get('__main__')
try:
sys.modules['__main__'] = statement_module
statement_module.__name__ = '__main__'
# re-evaluate the unpicklables
for code in session.unpicklables:
exec code in statement_module.__dict__
old_globals = dict(statement_module.__dict__)
# re-initialize the globals
session_globals_dict = session.globals_dict()
for name, val in session_globals_dict.items():
try:
statement_module.__dict__[name] = val
except:
session.remove_global(name)
# re-initialize '_' special variable
__builtin__._ = session_globals_dict.get('_')
# run!
offset = 0
try:
old_stdout = sys.stdout
old_stderr = sys.stderr
try:
if stream is not None:
sys.stdout = stream
sys.stderr = stream
if exec_source is not None:
try:
exec_code = self.compile(exec_source, 'exec')
except (OverflowError, SyntaxError, ValueError):
return self.error(stream, self.syntaxerror())
eval(exec_code, statement_module.__dict__)
if eval_source is not None:
if exec_source is not None:
offset = len(exec_source.split('\n'))
result = eval(eval_source, statement_module.__dict__)
sys.displayhook(result)
finally:
sys.stdout = old_stdout
sys.stderr = old_stderr
except:
return self.error(stream, self.traceback(offset))
# extract the new globals that this statement added
new_globals = {}
for name, val in statement_module.__dict__.items():
if name not in old_globals or val != old_globals[name]:
new_globals[name] = val
if True in [isinstance(val, UNPICKLABLE_TYPES) for val in new_globals.values()]:
# this statement added an unpicklable global. store the statement and
# the names of all of the globals it added in the unpicklables
source = ""
if exec_source:
source += exec_source
if eval_source:
source += eval_source
source += "\n"
session.add_unpicklable(source, new_globals.keys())
logging.debug('Storing this statement as an unpicklable.')
else:
# this statement didn't add any unpicklables. pickle and store the
# new globals back into the datastore
for name, val in new_globals.items():
if not name.startswith('__'):
try:
session.set_global(name, val)
except (TypeError, pickle.PicklingError):
pass
# save '_' special variable into the datastore
val = getattr(__builtin__, '_', None)
try:
session.set_global('_', val)
except (TypeError, pickle.PicklingError):
session.set_global('_', None)
finally:
sys.modules['__main__'] = old_main
sys.displayhook = old_displayhook
try:
del __builtin__._
except AttributeError:
pass
session.put()
def finished(outfile):
"""Print a closing message"""
sys.displayhook("Fixed pseudoscaffold can be found at " + os.getcwd() + "/" + outfile)
sys.exit(0)
def evaluate(self, source):
"""Evaluate a piece of Python source code. """
source = source.replace('\r', '').rstrip()
# XXX: make all this SIGINT aware
if '\n' in source:
exec_source, eval_source = self.split(source)
else:
exec_source, eval_source = None, source
eval_source += '\n'
try:
self.compile(eval_source, 'eval')
except (OverflowError, SyntaxError, ValueError):
if '\n' not in source and self.is_inspect(source):
return self.inspect(source)
exec_source = source
eval_source = None
try:
del self.namespace['__plots__']
except KeyError:
pass
interrupted = False
traceback = False
result = None
start = time.clock()
try:
if exec_source is not None:
try:
exec_code = self.compile(exec_source, 'exec')
except (OverflowError, SyntaxError, ValueError):
traceback = self.syntaxerror()
eval_source = None
else:
eval(exec_code, self.namespace)
if eval_source is not None:
result = eval(eval_source, self.namespace)
sys.displayhook(result)
except SystemExit:
raise
except KeyboardInterrupt:
traceback = self.traceback()
interrupted = True
except:
traceback = self.traceback()
end = time.clock()
try:
plots = self.namespace['__plots__']
except KeyError:
plots = []
self.index += 1
if result is not None:
self.namespace['_%d' % self.index] = result
self.namespace['___'] = self.namespace.get('__')
self.namespace['__'] = self.namespace.get('_')
self.namespace['_'] = result
result = {
'source': source,
'index': self.index,
'time': end - start,
'plots': plots,
'traceback': traceback,
'interrupted': interrupted,
}
return result
# ............................................ sys.byteorder # An indicator of the native byte order. This will have the value 'big' on big-endian (most-significant byte first) platforms, and 'little' on little-endian (least-significant byte first) platforms. # ............................................ sys.builtin_module_names # A tuple of strings giving the names of all modules that are compiled into this Python interpreter. # ............................................ sys.call_tracing(func, args) # Call func(*args), while tracing is enabled. The tracing state is saved, and restored afterwards. # ............................................ sys.copyright # A string containing the copyright pertaining to the Python interpreter. # ............................................ sys._clear_type_cache() # Clear the internal type cache. The type cache is used to speed up attribute and method lookups. # ............................................ sys._current_frames() # ............................................ sys.dllhandle # Integer specifying the handle of the Python DLL. Availability: Windows. # ............................................ sys.displayhook(value) # If value is not None, this function prints it to sys.stdout, and saves it in __builtin__._. # ............................................ sys.dont_write_bytecode # If this is true, Python won’t try to write .pyc or .pyo files on the import of source modules. # This value is initially set to True or False depending on the -B command line option and the PYTHONDONTWRITEBYTECODE environment variable, # but you can set it yourself to control bytecode file generation. # ............................................ sys.excepthook(type, value, traceback) # This function prints out a given traceback and exception to sys.stderr. # ............................................ sys.__displayhook__ sys.__excepthook__ # These objects contain the original values of displayhook and excepthook at the start of the program. # ............................................ sys.exc_info() # This function returns a tuple of three values that give information about the exception that is currently being handled # ............................................ sys.exc_clear() # This function clears all information relating to the current or last exception that occurred in the current thread # ............................................
def loop(self):
while True:
try:
if self.readMore:
sys.stdout.write("... ")
sys.stdout.flush()
self.single_input += sys.stdin.readline()
else:
sys.stdout.write(">>> ")
sys.stdout.flush()
self.single_input = sys.stdin.readline()
input_stream = antlr4.InputStream(self.single_input)
# Instantiate and run generated lexer
self.lexer = CustomLexer(input_stream)
self.tokens = antlr4.CommonTokenStream(self.lexer)
# Setting up error handling stuff
error_handler = CustomErrorStrategy()
error_listener = CustomErrorListener()
buffered_errors = BufferedErrorListener()
error_listener.addDelegatee(buffered_errors)
# Run parser and set error handler
self.parser = TinyPyParser(self.tokens)
self.parser._errHandler = error_handler
# Remove default terminal error listener & and our own
self.parser.removeErrorListeners()
self.parser.addErrorListener(error_listener)
# Parse input
parse_tree = self.parser.single_input()
# Determine what to do next
if error_listener.eof_received:
print()
exit(0)
elif error_listener.input_unfinished or self.lexer.opened > 0:
# User has not finished his input yet, read the next line and repeat
self.readMore = True
continue
elif error_listener.errors_encountered > 0:
# Errors encountered, start over
print(buffered_errors.buffer)
self.readMore = False
continue
else:
# Successfully parsed the input, next time start over
self.readMore = False
# Build a flattened syntax tree
cst = CST.CstFiltered(tree=parse_tree)
# Print some stuff... (if needed)
if self.args.cst:
print(cst)
if self.args.parse_tree:
parseTreeString = Trees.toStringTree(parse_tree, recog=self.parser)
print(parseTreeString)
# Evaluate it...
visitor = CustomVisitor()
ast = visitor.visitSingle_input(parse_tree)
if ast == None:
continue
if self.args.parse_only:
continue
results = ast.eval()
#
# ast.eval() returns list of statements; loop through them and print
#
if results != None:
for statement in results:
if statement != None and not isinstance(statement, ControlFlowMark):
sys.displayhook(statement)
#if results != None:
# sys.displayhook(results)
except KeyboardInterrupt as e:
print("")
exit(0)
except antlr4.RecognitionException as e:
print("Caught" + str(e) )
except runtime.Errors.BaseRuntimeException as e:
print(e.__class__.__name__ + ": " + str(e))
except SystemExit as e:
sys.exit(e)
except BaseException as e:
print(e.__class__.__name__ + ": " + str(e))
# -*- coding:utf-8 -*-
from sympy import pprint
from sympy import Symbol
from sympy.matrices import *
from random import *
import sys
sys.displayhook(pprint)
import time
import numpy as np
import matplotlib.pyplot as plt
print '''
****************************************************************************
6. Estime a complexidade do algoritmo de solução de sistemas lineares do pacote computacional de sua
preferência: registre os tempos que o pacote levou para resolver sistemas aleatórios nxn, com n =
16; 32; 64; 128; 256; 512; 1024; 2048. Faça um gráfi co do log do número de colunas contra o log dos tempos
registrados. O algoritmo do pacote tem complexidade inferior a O(nˆ3)?
'''
def random_ints(num, lower=-100, upper=100):
return [randrange(lower,upper+1) for i in range(num)]
def geraMatriz(n, l=-100, u=100):
return Matrix(n, n, random_ints(n**2, l, u))
tempoGeracao = {}
tempoDeterminante = {}
for n in range(4,11):
''' Contagem de tempo para criação das matrizes '''
def run(func=None, args=None, param_types=dict(), cli_result=False):
"""Invokes a function using CLI arguments
func: Defaults to __main__.main
args: Defaults to sys.argv[1:]
param_types: This mapping extends and overrides any "param_types"
attribute of "func". The parameter and attribute both map parameter
keywords to functions taking an argument string and returning the
parameter's data type. By default, arguments are passed to "func" as
unconverted strings. The special keywords "*" and "**" apply to any
excess positional and keyword arguments.
cli_result: If true, the function or context manager result will be
displayed, or will have a method invoked as a subcommand. A
subcommand is invoked by passing an extra positional argument.
If the function has a "cli_context" attribute set to True, the return
value is entered as a context manager. Any further return value handling
uses the result returned when entering the context manager.
If the function has the "subcommand_class" attribute set, a subcommand
will be expected, and will invoke a method listed in the class on the
function or context manager result.
The CLI option names are the parameter keywords, and hyphenated (-)
option names are interpreted as using underscores (_) instead. Options
may be prefixed with either a single (-) or a double (--) dash. An
option's argument may be separated by an equals sign (=) or may be in a
separate argument word.
For parameters that default to "False", the command option does not take
an argument and sets the corresponding "func" argument to "True". For
parameters that default to an empty list, tuple or set, the command
option may be given multiple times and are combined into a sequence.
Raises SystemExit() when the function was not actually run [TODO: when
appropriate]
"""
"""Similar implementations:
https://pypi.python.org/pypi/clize: adapts the function in two steps
http://dev.kylealanhale.com/wiki/projects/quicli: very decorator-happy,
with much "argparse" API and little automatic introspection
"""
[func, sig, keywords, param_types] = prepare(func, param_types)
varpos = param_kind(sig, Parameter.VAR_POSITIONAL)
varkw = param_kind(sig, Parameter.VAR_KEYWORD)
if args is None:
args = sys.argv[1:]
auto_help = list()
if varkw is None:
for opt in ("help", "h"):
if opt not in keywords:
auto_help.append(opt)
param = Parameter(opt, Parameter.KEYWORD_ONLY, default=False)
keywords[opt] = param
if sig:
pos_kinds = (
Parameter.POSITIONAL_ONLY, Parameter.POSITIONAL_OR_KEYWORD)
pos_iter = (param for
param in sig.parameters.values() if param.kind in pos_kinds)
else:
pos_iter = iter(())
positional = list()
opts = dict()
args = iter(args)
endopts = False
while True:
arg = next(args, None)
if arg is None:
break
if arg == "--":
endopts = True
continue
if not endopts and arg.startswith("-") and arg != "-":
# Allow options to be preceded by two dashes
if arg.startswith("--"):
opt = arg[2:]
else:
opt = arg[1:]
# Allow argument to be separated by equals sign
try:
[opt, arg] = opt.split("=")
except ValueError:
arg = None
opt = opt.replace("-", "_")
param = keywords.get(opt)
if not param:
if varkw is None:
raise SystemExit("Unexpected option {opt!r}".
format(**locals()))
param = varkw
if param.kind != param.VAR_KEYWORD and noarg_param(param):
if arg is not None:
raise SystemExit("Option {opt!r} takes no argument".
format(**locals()))
opts[opt] = True
else:
if arg is None:
try:
arg = next(args)
except StopIteration:
if sig:
msg = "Option {!r} requires an argument"
msg = msg.format(opt)
else:
msg = "Keyword options require arguments"
raise SystemExit(msg)
arg = convert(param_types, param, arg)
if param.kind != param.VAR_KEYWORD and multi_param(param):
opts.setdefault(opt, list()).append(arg)
else:
opts[opt] = arg
else:
param = next(pos_iter, varpos)
if (cli_result or hasattr(func, "subcommand_class")) and (
param is varpos or param.default is not Parameter.empty):
break
if param is not None:
arg = convert(param_types, param, arg)
positional.append(arg)
if any(opts.get(help, False) for help in auto_help):
help(func, param_types=param_types)
return
if sig:
try:
sig.bind(*positional, **opts)
except TypeError as err:
raise SystemExit(err)
result = func(*positional, **opts)
with ExitStack() as cleanup:
if getattr(func, "cli_context", False):
result = cleanup.enter_context(result)
if not cli_result and not hasattr(func, "subcommand_class"):
return result
if arg is None:
sys.displayhook(result)
return
if arg is None:
all = getattr(result, "__all__", None)
if all is None:
funcs = dir(result)
else:
funcs = all
heading = False
for name in funcs:
if all is None and name.startswith("_"):
continue
func = getattr(result, name)
if not callable(func):
continue
if not heading:
sys.stderr.write("public subcommands:\n")
heading = True
sys.stderr.write(name)
[summary, _] = splitdoc(inspect.getdoc(func))
if summary:
sys.stderr.writelines((": ", summary))
sys.stderr.write("\n")
if not heading:
sys.stderr.write("no public subcommands found\n")
else:
try:
func = getattr(result, arg)
except AttributeError as err:
err = "Invalid subcommand {!r}: {}".format(arg, err)
raise SystemExit(err)
return run(func, args, cli_result=cli_result)
print(sys.modules) # 打印系统所有模块,字典形式返回
# print(sys.exit(2)) # 打印程序返回代码
print(sys.version) # 打印python版本
print(sys.maxsize) # 打印最大值
print(sys.path) # 返回当前PYTHONPATH环境变量
print(sys.platform) # 返回操作系统平台名称
print(sys.stdout.write("inpu9t")) # 返回标准输出长度
# print(sys.stdin.readlin()[:-1]) # 标准输入,并分片取开头到倒数第一个(不包含)的内容
print(sys.modules.keys()) # 打印所有模块名
print(sys.modules.values()) # 打印所有模块位置
print(sys.exc_info()) # 获取当前正在处理的异常类,exc_type、exc_value、exc_traceback当前处理的异常详细信息
print(sys.hexversion) # 获取十六进制的版本值
print(sys.api_version) # 获取Cpython API版本
print(sys.version_info) # 打印版本详细信息
print(
sys.displayhook(2)
) # 如果value非空，这个函数会把他输出到sys.stdout，并且将他保存进__builtin__._.指在python的交互式解释器里，’_’ 代表上次你输入得到的结果，hook是钩子的意思，将上次的结果钩过来
print(sys.getdefaultencoding()) # 获取当前默认编码格式
print(sys.getfilesystemencoding()) # 获取文件系统编码
print(sys.builtin_module_names) # 打印内置模块名
print(sys.executable) # 打印python解释权程序路径
print(sys.getprofile())
print(sys.getallocatedblocks())
# print(sys.copyright) # 打印python版权信息
print(sys.byteorder) # 本地字节规则的指示器，big-endian平台的值是’big’,little-endian平台的值是’little’
# print(sys.exc_value)
print(sys.stdin) # 标准输入
print(sys.stdout) # 标准输出
print(sys.stderr) # 标准错误输出
print(sys.maxunicode) # 打印最大unicode值
def test_init_printing(capsys):
init_printing()
sys.displayhook(sqrt(5))
assert capsys.readouterr().out == 'sqrt(5)\n'
sys.displayhook('xyz')
assert capsys.readouterr().out == "'xyz'\n"
sys.displayhook(None)
assert capsys.readouterr().out == ''
init_printing(pretty_print=True, no_global=True)
sys.displayhook(sqrt(5))
assert capsys.readouterr().out == \
"""\
___\n\
╲╱ 5 \n"""
sys.displayhook(theta)
assert capsys.readouterr().out == 'θ\n'
init_printing(pretty_print=True, use_unicode=False, no_global=True)
sys.displayhook(theta)
assert capsys.readouterr().out == 'theta\n'
init_printing(pretty_print=True, order='grevlex', no_global=True)
sys.displayhook(y + x + y**2 + x**2)
assert capsys.readouterr().out == \
"""\
def display(self):
return sys.displayhook(self.value)
# -*- coding:utf-8 -*- from sympy import pprint from sympy import Symbol from sympy.matrices import * import sys sys.displayhook(pprint) print ''' **************************************************************************** Exercício 01: Asdrúbal acabou de receber um prêmio de 25 mil reais e deseja investir o dinheiro recebido. Ele deseja aplicar 6 mil reais em CDB, 3 mil reais em moeda estrangeira e 16 mil em ações. No entanto, no banco onde Asdrúbal pensa em investir só existe as seguintes opções de carteiras: opções de investimento Composição em cada quota Carteira A 2 reais em CDB, 2 reais em moeda estrangeira, 2 reais em ações Carteira B 1 real em CDB, nada em moeda estrangeira e 2 reais em ações Carteira C 1 real em CDB, 1 real em moeda estrangeira e 3 reais em ações (a) Mostre que as carteiras formam uma base do espaço das aplicações. (b) Descreva a distribuição das aplicações desejada por Asdrúbal na base das carteiras. (c) Quantas quotas de cada carteira Asdrúbal deve adquirir para compor a aplicação que deseja? ''' print '''
def evaluate(self, statement, session, printer=None, stream=None):
# def evaluate(self, statement, printer=None, stream=None):
"""Evaluate the statement in sessions's globals. """
# the Python compiler doesn't like network line endings
source = statement.replace('\r\n', '\n').rstrip()
# allow spaces before one-liners (to emulate Python shell's behaviour)
if '\n' not in source:
source = source.lstrip()
try:
# check for a SyntaxError now; this way the user will see their
# original statement and not the transformed one
ast.parse(source)
except SyntaxError:
return self.error(stream, self.syntaxerror())
# convert int to Integer (1/2 -> Integer(1)/Integer(2))
# source = int_to_Integer(source)
# print(getframeinfo(currentframe()).lineno, source)
# split source code into 'exec' and 'eval' parts
exec_source, eval_source = self.split(source)
# print(getframeinfo(currentframe()).lineno, exec_source, eval_source)
try:
self.compile(eval_source, 'eval')
except (OverflowError, SyntaxError, ValueError):
exec_source, eval_source = source, None
# print(getframeinfo(currentframe()).lineno, exec_source, eval_source)
if exec_source is not None:
exec_source += '\n'
if eval_source is not None:
eval_source += '\n'
# create a dedicated module to be used as this statement's __main__
statement_module = types.ModuleType('__main__')
# use this request's __builtin__, since it changes on each request.
# this is needed for import statements, among other things.
import builtins
statement_module.__builtins__ = __builtins__
# create customized display hook
stringify_func = printer
def displayhook(arg):
if arg is not None:
__builtins__['_'] = None
# print(stringify_func(arg))
print(arg)
__builtins__['_'] = arg
old_displayhook = sys.displayhook
sys.displayhook = displayhook
# swap in our custom module for __main__. then unpickle the session
# globals, run the statement, and re-pickle the session globals, all
# inside it.
old_main = sys.modules.get('__main__')
try:
old_globals = {}
sys.modules['__main__'] = statement_module
statement_module.__name__ = '__main__'
# re-evaluate the unpicklables
for code in session['unpicklables']: ##
exec(code, statement_module.__dict__)
exec(code, old_globals)
# re-initialize the globals
session_globals_dict = globals_dict(session)
for name, val in list(session_globals_dict.items()):
try:
statement_module.__dict__[name] = val
old_globals[name] = val
except:
remove_global(session, name)
# re-initialize '_' special variable
__builtins__['_'] = session_globals_dict.get('_')
# print(getframeinfo(currentframe()).lineno, __builtins__['_'])
# run!
offset = 0
try:
old_stdout = sys.stdout
old_stderr = sys.stderr
try:
if stream is not None:
sys.stdout = stream
sys.stderr = stream
if exec_source is not None:
try:
exec_code = self.compile(exec_source, 'exec')
except (OverflowError, SyntaxError, ValueError):
return self.error(stream, self.syntaxerror())
eval(exec_code, statement_module.__dict__)
# print('PR eval', eval_source, exec_source)
# if '=' not in exec_source and 'print' not in exec_source and 'import' not in exec_source:
# eval_source = exec_source
if eval_source is not None and 'print' not in eval_source:
if exec_source is not None:
offset = len(exec_source.split('\n'))
try:
result = eval(eval_source, statement_module.__dict__)
sys.displayhook(result)
except:
pass
finally:
sys.stdout = old_stdout
sys.stderr = old_stderr
# except DeadlineExceededError:
# logging.debug("is deadlineexceedederror in evaluate")
# raise DeadlineExceededError
except:
return self.error(stream, self.traceback(offset))
# extract the new globals that this statement added
new_globals = {}
for name, val in list(statement_module.__dict__.items()):
try:
if name not in old_globals or not val == old_globals[name]:
# if name not in old_globals:
# if val != old_globals[name]:
new_globals[name] = val
except:
comparison = val == old_globals[name]
equal_arrays = comparison.all()
if name not in old_globals or not equal_arrays:
new_globals[name] = val
for name in old_globals:
if name not in statement_module.__dict__:
remove_global(session, name)
if True in [isinstance(val, UNPICKLABLE_TYPES) for val in list(new_globals.values())]:
# this statement added an unpicklable global. store the statement and
# the names of all of the globals it added in the unpicklables
source = ""
if exec_source:
source += exec_source
if eval_source:
source += eval_source
source += "\n"
add_unpicklable(session, source, list(new_globals.keys()))
logging.debug('Storing this statement as an unpicklable.')
else:
# this statement didn't add any unpicklables. pickle and store the
# new globals back into the datastore
for name, val in list(new_globals.items()):
if not name.startswith('__'):
try:
set_global(session, name, val)
except (TypeError, pickle.PicklingError):
pass
# save '_' special variable into the datastore
val = __builtins__['_']
# print(getframeinfo(currentframe()).lineno, 'val', val)
try:
set_global(session, '_', val)
except (TypeError, pickle.PicklingError):
set_global(session, '_', None)
finally:
sys.modules['__main__'] = old_main
sys.displayhook = old_displayhook
try:
del __builtins__['_']
except AttributeError:
pass
try:
# session.put()
session.modified = True
# except RequestTooLargeError:
except:
stream.truncate(0) # clear output
self.error(stream, ('Unable to process statement due to its excessive size.',))
def generate_completions(
completion_context, old_completer_args, trace: bool
) -> tp.Iterator[tp.Tuple[Completion, int]]:
for name, func in XSH.completers.items():
try:
if is_contextual_completer(func):
if completion_context is None:
continue
out = func(completion_context)
else:
if old_completer_args is None:
continue
out = func(*old_completer_args)
except StopIteration:
# completer requested to stop collecting completions
break
except Exception as e:
print_exception(
f"Completer {func.__name__} raises exception when gets "
f"old_args={old_completer_args[:-1]} / completion_context={completion_context!r}:\n"
f"{type(e)} - {e}"
)
continue
completing_contextual_command = (
is_contextual_completer(func)
and completion_context is not None
and completion_context.command is not None
)
if isinstance(out, cabc.Sequence):
res, lprefix = out
custom_lprefix = True
else:
res = out
custom_lprefix = False
if completing_contextual_command:
lprefix = len(completion_context.command.prefix)
elif old_completer_args is not None:
lprefix = len(old_completer_args[0])
else:
lprefix = 0
if res is None:
continue
items = []
for comp in res:
comp = Completer._format_completion(
comp,
completion_context,
completing_contextual_command,
lprefix or 0,
custom_lprefix,
)
items.append(comp)
yield comp
if not items: # empty completion
continue
if trace:
print(
f"TRACE COMPLETIONS: Got {len(items)} results"
f" from {'' if is_exclusive_completer(func) else 'non-'}exclusive completer '{name}':"
)
sys.displayhook(items)
if is_exclusive_completer(func):
# we got completions for an exclusive completer
break
# The sys module contains interpreter-related tools: # items related to the interpreter or its process import sys sys.argv # Command-line argument strings list: [scriptname, argument1...] sys.byteorder sys.builtin_module_names sys.displayhook(value) sys.dont_write_bytecode sys.excepthook(type, value, trackback) sys.exc_info() sys.executable sys.exit([N]) sys.flags sys.float_info sys.getdefaultencoding() sys.setdefaultencoding(name) sys.getfilesystemencoding()
def __call__(self, tp, val, argin3):
global _auto_quote_funcs_
# We only handle SyntaxErrors
if not isinstance(val, exceptions.SyntaxError):
self._orig_ehook(tp, val, argin3)
return
# Complain if we're not at the top level
if (val.text[0]).isspace():
raise RuntimeError, \
"LazyPython shortcuts do not work in loops or functions."
# Test for shell escape
if val.text[0] == _SHELL_ESCAPE:
os.system(val.text[1:])
return
# 0 -> normal exception, 1 -> auto-quote, 2 -> auto-paren
lp_mode = 0
iFun = _first_word_re_.match(val.text)
if iFun is None: #Hard to see how this could happen, but just in case
self._orig_ehook(tp, val, argin3)
return
iFun = iFun.group(0)[:-1]
if val.text[0] == _PAREN_ESCAPE:
# Check for the auto-paren escape
lp_mode = 2
iFun = iFun[1:]
text = val.text[1:]
elif val.text[0] == _QUOTE_ESCAPE:
# Check for the auto-quote escape
lp_mode = 1
iFun = iFun[1:]
text = val.text[1:]
else:
# See if it's an auto-quote/paren function or a callable
text = val.text
if iFun in _auto_quote_funcs_:
lp_mode = 1
elif iFun in _auto_paren_funcs_:
lp_mode = 2
else:
try:
if callable(eval(iFun, _ns_)):
lp_mode = 2
except:
lp_mode = 0
# Now decide what to do based on lp_mode
if lp_mode == 0:
# Normal Exception
self._orig_ehook(tp, val, argin3)
return
if lp_mode == 1:
theRest = text[len(iFun):].strip()
# Auto-quote
newcmd = iFun + '("' + '", "'.join(theRest.split()) + '")\n'
elif lp_mode == 2:
# Auto-paren
#newcmd = iFun + '(' + ','.join(theRest.split()) + ')\n'
theRest = text[len(iFun):].strip()
newcmd = iFun + '(' + theRest + ')\n'
elif lp_mode == 3:
pass # newcmd has already been set
else:
raise RuntimeError, 'Error in LazyPython.py! Illegal lp_mode.'
# Try to execute the new command
try:
print '-->', newcmd
sys.displayhook(eval(newcmd, _ns_))
#exec newcmd in _ns_
except:
traceback.print_exc()
def __call__(self, tp, val, argin3):
global _auto_quote_funcs_
# We only handle SyntaxErrors
if not isinstance(val, exceptions.SyntaxError):
self._orig_ehook(tp, val, argin3)
return
# Complain if we're not at the top level
if (val.text[0]).isspace():
raise RuntimeError, "LazyPython shortcuts do not work in loops or functions."
# Test for shell escape
if val.text[0] == _SHELL_ESCAPE:
os.system(val.text[1:])
return
# 0 -> normal exception, 1 -> auto-quote, 2 -> auto-paren
lp_mode = 0
iFun = _first_word_re_.match(val.text)
if iFun is None: # Hard to see how this could happen, but just in case
self._orig_ehook(tp, val, argin3)
return
iFun = iFun.group(0)[:-1]
if val.text[0] == _PAREN_ESCAPE:
# Check for the auto-paren escape
lp_mode = 2
iFun = iFun[1:]
text = val.text[1:]
elif val.text[0] == _QUOTE_ESCAPE:
# Check for the auto-quote escape
lp_mode = 1
iFun = iFun[1:]
text = val.text[1:]
else:
# See if it's an auto-quote/paren function or a callable
text = val.text
if iFun in _auto_quote_funcs_:
lp_mode = 1
elif iFun in _auto_paren_funcs_:
lp_mode = 2
else:
try:
if callable(eval(iFun, _ns_)):
lp_mode = 2
except:
lp_mode = 0
# Now decide what to do based on lp_mode
if lp_mode == 0:
# Normal Exception
self._orig_ehook(tp, val, argin3)
return
if lp_mode == 1:
theRest = text[len(iFun) :].strip()
# Auto-quote
newcmd = iFun + '("' + '", "'.join(theRest.split()) + '")\n'
elif lp_mode == 2:
# Auto-paren
# newcmd = iFun + '(' + ','.join(theRest.split()) + ')\n'
theRest = text[len(iFun) :].strip()
newcmd = iFun + "(" + theRest + ")\n"
elif lp_mode == 3:
pass # newcmd has already been set
else:
raise RuntimeError, "Error in LazyPython.py! Illegal lp_mode."
# Try to execute the new command
try:
print "-->", newcmd
sys.displayhook(eval(newcmd, _ns_))
# exec newcmd in _ns_
except:
traceback.print_exc()
def evaluate(self, statement, session, printer=None, stream=None):
"""Evaluate the statement in sessions's globals. """
# the Python compiler doesn't like network line endings
source = statement.replace('\r\n', '\n').rstrip()
try:
# check for a SyntaxError now; this way the user will see their
# original statement and not the transformed one
ast.parse(source)
except SyntaxError:
return self.error(stream, self.syntaxerror())
# convert int to Integer (1/2 -> Integer(1)/Integer(2))
source = int_to_Integer(source)
# split source code into 'exec' and 'eval' parts
exec_source, eval_source = self.split(source)
try:
self.compile(eval_source, 'eval')
except (OverflowError, SyntaxError, ValueError):
exec_source, eval_source = source, None
if exec_source is not None:
exec_source += '\n'
if eval_source is not None:
eval_source += '\n'
# create a dedicated module to be used as this statement's __main__
statement_module = new.module('__main__')
# use this request's __builtin__, since it changes on each request.
# this is needed for import statements, among other things.
import __builtin__
statement_module.__builtin__ = __builtin__
# create customized display hook
stringify_func = printer or sstr
def displayhook(arg):
if arg is not None:
__builtin__._ = None
print stringify_func(arg)
__builtin__._ = arg
old_displayhook = sys.displayhook
sys.displayhook = displayhook
# swap in our custom module for __main__. then unpickle the session
# globals, run the statement, and re-pickle the session globals, all
# inside it.
old_main = sys.modules.get('__main__')
try:
old_globals = {}
sys.modules['__main__'] = statement_module
statement_module.__name__ = '__main__'
# re-evaluate the unpicklables
for code in session.unpicklables:
exec code in statement_module.__dict__
exec code in old_globals
# re-initialize the globals
session_globals_dict = session.globals_dict()
for name, val in session_globals_dict.items():
try:
statement_module.__dict__[name] = val
old_globals[name] = val
except:
session.remove_global(name)
# re-initialize '_' special variable
__builtin__._ = session_globals_dict.get('_')
# run!
offset = 0
try:
old_stdout = sys.stdout
old_stderr = sys.stderr
try:
if stream is not None:
sys.stdout = stream
sys.stderr = stream
if exec_source is not None:
try:
exec_code = self.compile(exec_source, 'exec')
except (OverflowError, SyntaxError, ValueError):
return self.error(stream, self.syntaxerror())
eval(exec_code, statement_module.__dict__)
if eval_source is not None:
if exec_source is not None:
offset = len(exec_source.split('\n'))
result = eval(eval_source, statement_module.__dict__)
sys.displayhook(result)
finally:
sys.stdout = old_stdout
sys.stderr = old_stderr
except DeadlineExceededError:
logging.debug("is deadlineexceedederror in evaluate")
raise DeadlineExceededError
except:
return self.error(stream, self.traceback(offset))
# extract the new globals that this statement added
new_globals = {}
for name, val in statement_module.__dict__.items():
if name not in old_globals or val != old_globals[name]:
new_globals[name] = val
for name in old_globals:
if name not in statement_module.__dict__:
session.remove_global(name)
if True in [
isinstance(val, UNPICKLABLE_TYPES)
for val in new_globals.values()
]:
# this statement added an unpicklable global. store the statement and
# the names of all of the globals it added in the unpicklables
source = ""
if exec_source:
source += exec_source
if eval_source:
source += eval_source
source += "\n"
session.add_unpicklable(source, new_globals.keys())
logging.debug('Storing this statement as an unpicklable.')
else:
# this statement didn't add any unpicklables. pickle and store the
# new globals back into the datastore
for name, val in new_globals.items():
if not name.startswith('__'):
try:
session.set_global(name, val)
except (TypeError, pickle.PicklingError):
pass
# save '_' special variable into the datastore
val = getattr(__builtin__, '_', None)
try:
session.set_global('_', val)
except (TypeError, pickle.PicklingError):
session.set_global('_', None)
finally:
sys.modules['__main__'] = old_main
sys.displayhook = old_displayhook
try:
del __builtin__._
except AttributeError:
pass
try:
session.put()
except RequestTooLargeError:
stream.truncate(0) # clear output
self.error(
stream,
('Unable to process statement due to its excessive size.', ))
def evaluate(self, source):
"""Evaluate a piece of Python source code. """
source = source.replace('\r', '').rstrip()
# XXX: make all this SIGINT aware
if '\n' in source:
exec_source, eval_source = self.split(source)
else:
exec_source, eval_source = None, source
eval_source += '\n'
try:
self.compile(eval_source, 'eval')
except (OverflowError, SyntaxError, ValueError):
if '\n' not in source and self.is_inspect(source):
return self.inspect(source)
exec_source = source
eval_source = None
# If in debug mode, then don't setup output trap so that we can
# run a debugger (e.g. pdb). Note that stdout and stderr won't
# be captured and stored in the resulting dict object.
if not self.debug:
self.trap.set()
try:
try:
del self.locals['__plots__']
except KeyError:
pass
interrupted = False
traceback = False
result = None
start = time.clock()
try:
if exec_source is not None:
try:
exec_code = self.compile(exec_source, 'exec')
except (OverflowError, SyntaxError, ValueError):
traceback = self.syntaxerror()
eval_source = None
else:
exec exec_code in self.locals
if eval_source is not None:
result = eval(eval_source, self.locals)
sys.displayhook(result)
except SystemExit:
raise
except KeyboardInterrupt:
traceback = self.traceback()
interrupted = True
except:
traceback = self.traceback()
end = time.clock()
try:
plots = self.locals['__plots__']
except KeyError:
plots = []
self.index += 1
if result is not None:
self.locals['_%d' % self.index] = result
self.locals['___'] = self.locals.get('__')
self.locals['__'] = self.locals.get('_')
self.locals['_'] = result
result = {
'source': source,
'index': self.index,
'time': end - start,
'out': self.trap.out,
'err': self.trap.err,
'plots': plots,
'traceback': traceback,
'interrupted': interrupted,
}
if traceback:
result['traceback_html'] = self.highlight.traceback(traceback)
return result
finally:
self.trap.reset()