def filename_and_mtime(self, module):
if not hasattr(module, '__file__') or module.__file__ is None:
return None, None
if getattr(module, '__name__', None) == '__main__':
# we cannot reload(__main__)
return None, None
filename = module.__file__
path, ext = os.path.splitext(filename)
if ext.lower() == '.py':
py_filename = filename
else:
try:
py_filename = openpy.source_from_cache(filename)
except ValueError:
return None, None
try:
pymtime = os.stat(py_filename).st_mtime
except OSError:
return None, None
return py_filename, pymtime
def filename_and_mtime(self, module):
if not hasattr(module, '__file__') or module.__file__ is None:
return None, None
if getattr(module, '__name__', None) in [None, '__mp_main__', '__main__']:
# we cannot reload(__main__) or reload(__mp_main__)
return None, None
filename = module.__file__
path, ext = os.path.splitext(filename)
if ext.lower() == '.py':
py_filename = filename
else:
try:
py_filename = openpy.source_from_cache(filename)
except ValueError:
return None, None
try:
pymtime = os.stat(py_filename).st_mtime
except OSError:
return None, None
return py_filename, pymtime
def check(self, check_all=False):
"""Check whether some modules need to be reloaded."""
if not self.enabled and not check_all:
return
if check_all or self.check_all:
modules = list(sys.modules.keys())
else:
modules = list(self.modules.keys())
for modname in modules:
m = sys.modules.get(modname, None)
if modname in self.skip_modules:
continue
if not hasattr(m, '__file__'):
continue
if m.__name__ == '__main__':
# we cannot reload(__main__)
continue
filename = m.__file__
path, ext = os.path.splitext(filename)
if ext.lower() == '.py':
pyc_filename = openpy.cache_from_source(filename)
py_filename = filename
else:
pyc_filename = filename
try:
py_filename = openpy.source_from_cache(filename)
except ValueError:
continue
try:
pymtime = os.stat(py_filename).st_mtime
if pymtime <= os.stat(pyc_filename).st_mtime:
continue
if self.failed.get(py_filename, None) == pymtime:
continue
except OSError:
continue
try:
superreload(m, reload, self.old_objects)
if py_filename in self.failed:
del self.failed[py_filename]
except:
print("[autoreload of %s failed: %s]" %
(modname, traceback.format_exc(1)),
file=sys.stderr)
self.failed[py_filename] = pymtime
def check(self, check_all=False):
"""Check whether some modules need to be reloaded."""
if not self.enabled and not check_all:
return
if check_all or self.check_all:
modules = list(sys.modules.keys())
else:
modules = list(self.modules.keys())
for modname in modules:
m = sys.modules.get(modname, None)
if modname in self.skip_modules:
continue
if not hasattr(m, '__file__'):
continue
if m.__name__ == '__main__':
# we cannot reload(__main__)
continue
filename = m.__file__
path, ext = os.path.splitext(filename)
if ext.lower() == '.py':
pyc_filename = openpy.cache_from_source(filename)
py_filename = filename
else:
pyc_filename = filename
try:
py_filename = openpy.source_from_cache(filename)
except ValueError:
continue
try:
pymtime = os.stat(py_filename).st_mtime
if pymtime <= os.stat(pyc_filename).st_mtime:
continue
if self.failed.get(py_filename, None) == pymtime:
continue
except OSError:
continue
try:
superreload(m, reload, self.old_objects)
if py_filename in self.failed:
del self.failed[py_filename]
except:
print("[autoreload of %s failed: %s]" % (
modname, traceback.format_exc(1)), file=sys.stderr)
self.failed[py_filename] = pymtime
def generate_lprofile(self, fun):
"""
Generate div containing profiled source code with timings of each line,
taken from iline_profiler.
"""
self.value_lprofile = ""
try:
filename = fun.co_filename
firstlineno = fun.co_firstlineno
name = fun.co_name
except AttributeError:
return
ltimings_key = (filename, firstlineno, name)
try:
ltimings = self.lprofile.timings[ltimings_key]
except KeyError:
return
# Currently the correct filename is stored at the end of ltimings.
# This is a work-around to fix cProfiler giving useless filenames for
# zipped packages.
filename = ltimings[-1]
if filename.endswith(('.pyc', '.pyo')):
filename = openpy.source_from_cache(filename)
if ".egg/" in filename:
add_zipped_file_to_linecache(filename)
raw_code = ""
linenos = range(firstlineno, ltimings[-2][0] + 1)
for lineno in linenos:
raw_code += ulinecache.getline(filename, lineno)
formatter = LProfileFormatter(firstlineno, ltimings, noclasses=True)
self.value_lprofile = highlight(raw_code, PythonLexer(), formatter)
def structured_traceback(self, etype, evalue, etb, tb_offset=None,
context=5):
"""Return a nice text document describing the traceback."""
tb_offset = self.tb_offset if tb_offset is None else tb_offset
# some locals
try:
etype = etype.__name__
except AttributeError:
pass
Colors = self.Colors # just a shorthand + quicker name lookup
ColorsNormal = Colors.Normal # used a lot
col_scheme = self.color_scheme_table.active_scheme_name
indent = ' '*INDENT_SIZE
em_normal = '%s\n%s%s' % (Colors.valEm, indent,ColorsNormal)
undefined = '%sundefined%s' % (Colors.em, ColorsNormal)
exc = '%s%s%s' % (Colors.excName,etype,ColorsNormal)
# some internal-use functions
def text_repr(value):
"""Hopefully pretty robust repr equivalent."""
# this is pretty horrible but should always return *something*
try:
return pydoc.text.repr(value)
except KeyboardInterrupt:
raise
except:
try:
return repr(value)
except KeyboardInterrupt:
raise
except:
try:
# all still in an except block so we catch
# getattr raising
name = getattr(value, '__name__', None)
if name:
# ick, recursion
return text_repr(name)
klass = getattr(value, '__class__', None)
if klass:
return '%s instance' % text_repr(klass)
except KeyboardInterrupt:
raise
except:
return 'UNRECOVERABLE REPR FAILURE'
def eqrepr(value, repr=text_repr): return '=%s' % repr(value)
def nullrepr(value, repr=text_repr): return ''
# meat of the code begins
try:
etype = etype.__name__
except AttributeError:
pass
if self.long_header:
# Header with the exception type, python version, and date
pyver = 'Python ' + sys.version.split()[0] + ': ' + sys.executable
date = time.ctime(time.time())
head = '%s%s%s\n%s%s%s\n%s' % (Colors.topline, '-'*75, ColorsNormal,
exc, ' '*(75-len(str(etype))-len(pyver)),
pyver, date.rjust(75) )
head += "\nA problem occured executing Python code. Here is the sequence of function"\
"\ncalls leading up to the error, with the most recent (innermost) call last."
else:
# Simplified header
head = '%s%s%s\n%s%s' % (Colors.topline, '-'*75, ColorsNormal,exc,
'Traceback (most recent call last)'.\
rjust(75 - len(str(etype)) ) )
frames = []
# Flush cache before calling inspect. This helps alleviate some of the
# problems with python 2.3's inspect.py.
##self.check_cache()
# Drop topmost frames if requested
try:
# Try the default getinnerframes and Alex's: Alex's fixes some
# problems, but it generates empty tracebacks for console errors
# (5 blanks lines) where none should be returned.
#records = inspect.getinnerframes(etb, context)[tb_offset:]
#print 'python records:', records # dbg
records = _fixed_getinnerframes(etb, context, tb_offset)
#print 'alex records:', records # dbg
except:
# FIXME: I've been getting many crash reports from python 2.3
# users, traceable to inspect.py. If I can find a small test-case
# to reproduce this, I should either write a better workaround or
# file a bug report against inspect (if that's the real problem).
# So far, I haven't been able to find an isolated example to
# reproduce the problem.
inspect_error()
traceback.print_exc(file=self.ostream)
info('\nUnfortunately, your original traceback can not be constructed.\n')
return ''
# build some color string templates outside these nested loops
tpl_link = '%s%%s%s' % (Colors.filenameEm,ColorsNormal)
tpl_call = 'in %s%%s%s%%s%s' % (Colors.vName, Colors.valEm,
ColorsNormal)
tpl_call_fail = 'in %s%%s%s(***failed resolving arguments***)%s' % \
(Colors.vName, Colors.valEm, ColorsNormal)
tpl_local_var = '%s%%s%s' % (Colors.vName, ColorsNormal)
tpl_global_var = '%sglobal%s %s%%s%s' % (Colors.em, ColorsNormal,
Colors.vName, ColorsNormal)
tpl_name_val = '%%s %s= %%s%s' % (Colors.valEm, ColorsNormal)
tpl_line = '%s%%s%s %%s' % (Colors.lineno, ColorsNormal)
tpl_line_em = '%s%%s%s %%s%s' % (Colors.linenoEm,Colors.line,
ColorsNormal)
# now, loop over all records printing context and info
abspath = os.path.abspath
for frame, file, lnum, func, lines, index in records:
#print '*** record:',file,lnum,func,lines,index # dbg
if not file:
file = '?'
elif not(file.startswith(str("<")) and file.endswith(str(">"))):
# Guess that filenames like <string> aren't real filenames, so
# don't call abspath on them.
try:
file = abspath(file)
except OSError:
# Not sure if this can still happen: abspath now works with
# file names like <string>
pass
file = py3compat.cast_unicode(file, util_path.fs_encoding)
link = tpl_link % file
args, varargs, varkw, locals = inspect.getargvalues(frame)
if func == '?':
call = ''
else:
# Decide whether to include variable details or not
var_repr = self.include_vars and eqrepr or nullrepr
try:
call = tpl_call % (func,inspect.formatargvalues(args,
varargs, varkw,
locals,formatvalue=var_repr))
except KeyError:
# This happens in situations like errors inside generator
# expressions, where local variables are listed in the
# line, but can't be extracted from the frame. I'm not
# 100% sure this isn't actually a bug in inspect itself,
# but since there's no info for us to compute with, the
# best we can do is report the failure and move on. Here
# we must *not* call any traceback construction again,
# because that would mess up use of %debug later on. So we
# simply report the failure and move on. The only
# limitation will be that this frame won't have locals
# listed in the call signature. Quite subtle problem...
# I can't think of a good way to validate this in a unit
# test, but running a script consisting of:
# dict( (k,v.strip()) for (k,v) in range(10) )
# will illustrate the error, if this exception catch is
# disabled.
call = tpl_call_fail % func
# Don't attempt to tokenize binary files.
if file.endswith(('.so', '.pyd', '.dll')):
frames.append('%s %s\n' % (link,call))
continue
elif file.endswith(('.pyc','.pyo')):
# Look up the corresponding source file.
file = openpy.source_from_cache(file)
def linereader(file=file, lnum=[lnum], getline=ulinecache.getline):
line = getline(file, lnum[0])
lnum[0] += 1
return line
# Build the list of names on this line of code where the exception
# occurred.
try:
names = []
name_cont = False
for token_type, token, start, end, line in generate_tokens(linereader):
# build composite names
if token_type == tokenize.NAME and token not in keyword.kwlist:
if name_cont:
# Continuation of a dotted name
try:
names[-1].append(token)
except IndexError:
names.append([token])
name_cont = False
else:
# Regular new names. We append everything, the caller
# will be responsible for pruning the list later. It's
# very tricky to try to prune as we go, b/c composite
# names can fool us. The pruning at the end is easy
# to do (or the caller can print a list with repeated
# names if so desired.
names.append([token])
elif token == '.':
name_cont = True
elif token_type == tokenize.NEWLINE:
break
except (IndexError, UnicodeDecodeError):
# signals exit of tokenizer
pass
except tokenize.TokenError as msg:
_m = ("An unexpected error occurred while tokenizing input\n"
"The following traceback may be corrupted or invalid\n"
"The error message is: %s\n" % msg)
error(_m)
# Join composite names (e.g. "dict.fromkeys")
names = ['.'.join(n) for n in names]
# prune names list of duplicates, but keep the right order
unique_names = uniq_stable(names)
# Start loop over vars
lvals = []
if self.include_vars:
for name_full in unique_names:
name_base = name_full.split('.',1)[0]
if name_base in frame.f_code.co_varnames:
if name_base in locals:
try:
value = repr(eval(name_full,locals))
except:
value = undefined
else:
value = undefined
name = tpl_local_var % name_full
else:
if name_base in frame.f_globals:
try:
value = repr(eval(name_full,frame.f_globals))
except:
value = undefined
else:
value = undefined
name = tpl_global_var % name_full
lvals.append(tpl_name_val % (name,value))
if lvals:
lvals = '%s%s' % (indent,em_normal.join(lvals))
else:
lvals = ''
level = '%s %s\n' % (link,call)
if index is None:
frames.append(level)
else:
frames.append('%s%s' % (level,''.join(
_format_traceback_lines(lnum,index,lines,Colors,lvals,
col_scheme))))
# Get (safely) a string form of the exception info
try:
etype_str,evalue_str = map(str,(etype,evalue))
except:
# User exception is improperly defined.
etype,evalue = str,sys.exc_info()[:2]
etype_str,evalue_str = map(str,(etype,evalue))
# ... and format it
exception = ['%s%s%s: %s' % (Colors.excName, etype_str,
ColorsNormal, py3compat.cast_unicode(evalue_str))]
if (not py3compat.PY3) and type(evalue) is types.InstanceType:
try:
names = [w for w in dir(evalue) if isinstance(w, basestring)]
except:
# Every now and then, an object with funny inernals blows up
# when dir() is called on it. We do the best we can to report
# the problem and continue
_m = '%sException reporting error (object with broken dir())%s:'
exception.append(_m % (Colors.excName,ColorsNormal))
etype_str,evalue_str = map(str,sys.exc_info()[:2])
exception.append('%s%s%s: %s' % (Colors.excName,etype_str,
ColorsNormal, py3compat.cast_unicode(evalue_str)))
names = []
for name in names:
value = text_repr(getattr(evalue, name))
exception.append('\n%s%s = %s' % (indent, name, value))
# vds: >>
if records:
filepath, lnum = records[-1][1:3]
#print "file:", str(file), "linenb", str(lnum) # dbg
filepath = os.path.abspath(filepath)
ipinst = get_ipython()
if ipinst is not None:
ipinst.hooks.synchronize_with_editor(filepath, lnum, 0)
# vds: <<
# return all our info assembled as a single string
# return '%s\n\n%s\n%s' % (head,'\n'.join(frames),''.join(exception[0]) )
return [head] + frames + [''.join(exception[0])]
def structured_traceback(self, etype, evalue, etb, tb_offset=None,
context=5):
"""Return a nice text document describing the traceback."""
tb_offset = self.tb_offset if tb_offset is None else tb_offset
# some locals
try:
etype = etype.__name__
except AttributeError:
pass
Colors = self.Colors # just a shorthand + quicker name lookup
ColorsNormal = Colors.Normal # used a lot
col_scheme = self.color_scheme_table.active_scheme_name
indent = ' '*INDENT_SIZE
em_normal = '%s\n%s%s' % (Colors.valEm, indent,ColorsNormal)
undefined = '%sundefined%s' % (Colors.em, ColorsNormal)
exc = '%s%s%s' % (Colors.excName,etype,ColorsNormal)
# some internal-use functions
def text_repr(value):
"""Hopefully pretty robust repr equivalent."""
# this is pretty horrible but should always return *something*
try:
return pydoc.text.repr(value)
except KeyboardInterrupt:
raise
except:
try:
return repr(value)
except KeyboardInterrupt:
raise
except:
try:
# all still in an except block so we catch
# getattr raising
name = getattr(value, '__name__', None)
if name:
# ick, recursion
return text_repr(name)
klass = getattr(value, '__class__', None)
if klass:
return '%s instance' % text_repr(klass)
except KeyboardInterrupt:
raise
except:
return 'UNRECOVERABLE REPR FAILURE'
def eqrepr(value, repr=text_repr): return '=%s' % repr(value)
def nullrepr(value, repr=text_repr): return ''
# meat of the code begins
try:
etype = etype.__name__
except AttributeError:
pass
if self.long_header:
# Header with the exception type, python version, and date
pyver = 'Python ' + sys.version.split()[0] + ': ' + sys.executable
date = time.ctime(time.time())
head = '%s%s%s\n%s%s%s\n%s' % (Colors.topline, '-'*75, ColorsNormal,
exc, ' '*(75-len(str(etype))-len(pyver)),
pyver, date.rjust(75) )
head += "\nA problem occured executing Python code. Here is the sequence of function"\
"\ncalls leading up to the error, with the most recent (innermost) call last."
else:
# Simplified header
head = '%s%s%s\n%s%s' % (Colors.topline, '-'*75, ColorsNormal,exc,
'Traceback (most recent call last)'.\
rjust(75 - len(str(etype)) ) )
frames = []
# Flush cache before calling inspect. This helps alleviate some of the
# problems with python 2.3's inspect.py.
##self.check_cache()
# Drop topmost frames if requested
try:
# Try the default getinnerframes and Alex's: Alex's fixes some
# problems, but it generates empty tracebacks for console errors
# (5 blanks lines) where none should be returned.
#records = inspect.getinnerframes(etb, context)[tb_offset:]
#print 'python records:', records # dbg
records = _fixed_getinnerframes(etb, context, tb_offset)
#print 'alex records:', records # dbg
except:
# FIXME: I've been getting many crash reports from python 2.3
# users, traceable to inspect.py. If I can find a small test-case
# to reproduce this, I should either write a better workaround or
# file a bug report against inspect (if that's the real problem).
# So far, I haven't been able to find an isolated example to
# reproduce the problem.
inspect_error()
traceback.print_exc(file=self.ostream)
info('\nUnfortunately, your original traceback can not be constructed.\n')
return ''
# build some color string templates outside these nested loops
tpl_link = '%s%%s%s' % (Colors.filenameEm,ColorsNormal)
tpl_call = 'in %s%%s%s%%s%s' % (Colors.vName, Colors.valEm,
ColorsNormal)
tpl_call_fail = 'in %s%%s%s(***failed resolving arguments***)%s' % \
(Colors.vName, Colors.valEm, ColorsNormal)
tpl_local_var = '%s%%s%s' % (Colors.vName, ColorsNormal)
tpl_global_var = '%sglobal%s %s%%s%s' % (Colors.em, ColorsNormal,
Colors.vName, ColorsNormal)
tpl_name_val = '%%s %s= %%s%s' % (Colors.valEm, ColorsNormal)
tpl_line = '%s%%s%s %%s' % (Colors.lineno, ColorsNormal)
tpl_line_em = '%s%%s%s %%s%s' % (Colors.linenoEm,Colors.line,
ColorsNormal)
# now, loop over all records printing context and info
abspath = os.path.abspath
for frame, file, lnum, func, lines, index in records:
#print '*** record:',file,lnum,func,lines,index # dbg
if not file:
file = '?'
elif not(file.startswith(str("<")) and file.endswith(str(">"))):
# Guess that filenames like <string> aren't real filenames, so
# don't call abspath on them.
try:
file = abspath(file)
except OSError:
# Not sure if this can still happen: abspath now works with
# file names like <string>
pass
file = py3compat.cast_unicode(file, util_path.fs_encoding)
link = tpl_link % file
args, varargs, varkw, locals = inspect.getargvalues(frame)
if func == '?':
call = ''
else:
# Decide whether to include variable details or not
var_repr = self.include_vars and eqrepr or nullrepr
try:
call = tpl_call % (func,inspect.formatargvalues(args,
varargs, varkw,
locals,formatvalue=var_repr))
except KeyError:
# This happens in situations like errors inside generator
# expressions, where local variables are listed in the
# line, but can't be extracted from the frame. I'm not
# 100% sure this isn't actually a bug in inspect itself,
# but since there's no info for us to compute with, the
# best we can do is report the failure and move on. Here
# we must *not* call any traceback construction again,
# because that would mess up use of %debug later on. So we
# simply report the failure and move on. The only
# limitation will be that this frame won't have locals
# listed in the call signature. Quite subtle problem...
# I can't think of a good way to validate this in a unit
# test, but running a script consisting of:
# dict( (k,v.strip()) for (k,v) in range(10) )
# will illustrate the error, if this exception catch is
# disabled.
call = tpl_call_fail % func
# Don't attempt to tokenize binary files.
if file.endswith(('.so', '.pyd', '.dll')):
frames.append('%s %s\n' % (link,call))
continue
elif file.endswith(('.pyc','.pyo')):
# Look up the corresponding source file.
file = openpy.source_from_cache(file)
def linereader(file=file, lnum=[lnum], getline=ulinecache.getline):
line = getline(file, lnum[0])
lnum[0] += 1
return line
# Build the list of names on this line of code where the exception
# occurred.
try:
names = []
name_cont = False
for token_type, token, start, end, line in generate_tokens(linereader):
# build composite names
if token_type == tokenize.NAME and token not in keyword.kwlist:
if name_cont:
# Continuation of a dotted name
try:
names[-1].append(token)
except IndexError:
names.append([token])
name_cont = False
else:
# Regular new names. We append everything, the caller
# will be responsible for pruning the list later. It's
# very tricky to try to prune as we go, b/c composite
# names can fool us. The pruning at the end is easy
# to do (or the caller can print a list with repeated
# names if so desired.
names.append([token])
elif token == '.':
name_cont = True
elif token_type == tokenize.NEWLINE:
break
except (IndexError, UnicodeDecodeError):
# signals exit of tokenizer
pass
except tokenize.TokenError as msg:
_m = ("An unexpected error occurred while tokenizing input\n"
"The following traceback may be corrupted or invalid\n"
"The error message is: %s\n" % msg)
error(_m)
# Join composite names (e.g. "dict.fromkeys")
names = ['.'.join(n) for n in names]
# prune names list of duplicates, but keep the right order
unique_names = uniq_stable(names)
# Start loop over vars
lvals = []
if self.include_vars:
for name_full in unique_names:
name_base = name_full.split('.',1)[0]
if name_base in frame.f_code.co_varnames:
if name_base in locals:
try:
value = repr(eval(name_full,locals))
except:
value = undefined
else:
value = undefined
name = tpl_local_var % name_full
else:
if name_base in frame.f_globals:
try:
value = repr(eval(name_full,frame.f_globals))
except:
value = undefined
else:
value = undefined
name = tpl_global_var % name_full
lvals.append(tpl_name_val % (name,value))
if lvals:
lvals = '%s%s' % (indent,em_normal.join(lvals))
else:
lvals = ''
level = '%s %s\n' % (link,call)
if index is None:
frames.append(level)
else:
frames.append('%s%s' % (level,''.join(
_format_traceback_lines(lnum,index,lines,Colors,lvals,
col_scheme))))
# Get (safely) a string form of the exception info
try:
etype_str,evalue_str = list(map(str,(etype,evalue)))
except:
# User exception is improperly defined.
etype,evalue = str,sys.exc_info()[:2]
etype_str,evalue_str = list(map(str,(etype,evalue)))
# ... and format it
exception = ['%s%s%s: %s' % (Colors.excName, etype_str,
ColorsNormal, py3compat.cast_unicode(evalue_str))]
if (not py3compat.PY3) and type(evalue) is types.InstanceType:
try:
names = [w for w in dir(evalue) if isinstance(w, str)]
except:
# Every now and then, an object with funny inernals blows up
# when dir() is called on it. We do the best we can to report
# the problem and continue
_m = '%sException reporting error (object with broken dir())%s:'
exception.append(_m % (Colors.excName,ColorsNormal))
etype_str,evalue_str = list(map(str,sys.exc_info()[:2]))
exception.append('%s%s%s: %s' % (Colors.excName,etype_str,
ColorsNormal, py3compat.cast_unicode(evalue_str)))
names = []
for name in names:
value = text_repr(getattr(evalue, name))
exception.append('\n%s%s = %s' % (indent, name, value))
# vds: >>
if records:
filepath, lnum = records[-1][1:3]
#print "file:", str(file), "linenb", str(lnum) # dbg
filepath = os.path.abspath(filepath)
ipinst = get_ipython()
if ipinst is not None:
ipinst.hooks.synchronize_with_editor(filepath, lnum, 0)
# vds: <<
# return all our info assembled as a single string
# return '%s\n\n%s\n%s' % (head,'\n'.join(frames),''.join(exception[0]) )
return [head] + frames + [''.join(exception[0])]