def refill_readline_hist(self):
# Load the last 1000 lines from history
self.readline.clear_history()
stdin_encoding = sys.stdin.encoding or "utf-8"
last_cell = u""
for _, _, cell in self.history_manager.get_tail(self.history_load_length,
include_latest=True):
# Ignore blank lines and consecutive duplicates
cell = cell.rstrip()
if cell and (cell != last_cell):
try:
if self.multiline_history:
self.readline.add_history(py3compat.unicode_to_str(cell,
stdin_encoding))
else:
for line in cell.splitlines():
self.readline.add_history(py3compat.unicode_to_str(line,
stdin_encoding))
last_cell = cell
except (TypeError, ValueError) as e:
# The history DB can get corrupted so it returns strings
# containing null bytes, which readline objects to.
warn(("Failed to add string to readline history.\n"
"Error: {}\n"
"Cell: {!r}").format(e, cell))
def refill_readline_hist(self):
# Load the last 1000 lines from history
self.readline.clear_history()
stdin_encoding = sys.stdin.encoding or "utf-8"
last_cell = u""
for _, _, cell in self.history_manager.get_tail(
self.history_load_length, include_latest=True):
# Ignore blank lines and consecutive duplicates
cell = cell.rstrip()
if cell and (cell != last_cell):
try:
if self.multiline_history:
self.readline.add_history(
py3compat.unicode_to_str(cell, stdin_encoding))
else:
for line in cell.splitlines():
self.readline.add_history(
py3compat.unicode_to_str(line, stdin_encoding))
last_cell = cell
except (TypeError, ValueError) as e:
# The history DB can get corrupted so it returns strings
# containing null bytes, which readline objects to.
warn(("Failed to add string to readline history.\n"
"Error: {}\n"
"Cell: {!r}").format(e, cell))
def test_replace_multiline_hist_replaces_twice(self):
"""Test that multiline entries are replaced twice"""
ip = get_ipython()
ip.multiline_history = True
ip.readline.add_history(u'line0')
#start cell
hlen_b4_cell = ip.readline.get_current_history_length()
ip.readline.add_history('l€ne1')
ip.readline.add_history('line2')
#replace cell with single line
hlen_b4_cell = ip._replace_rlhist_multiline(u'l€ne1\nline2',
hlen_b4_cell)
ip.readline.add_history('l€ne3')
ip.readline.add_history('line4')
#replace cell with single line
hlen_b4_cell = ip._replace_rlhist_multiline(u'l€ne3\nline4',
hlen_b4_cell)
self.assertEqual(ip.readline.get_current_history_length(),
hlen_b4_cell)
hist = self.rl_hist_entries(ip.readline, 3)
expected = [u'line0', u'l€ne1\nline2', u'l€ne3\nline4']
# perform encoding, in case of casting due to ASCII locale
enc = sys.stdin.encoding or "utf-8"
expected = [ py3compat.unicode_to_str(e, enc) for e in expected ]
self.assertEqual(hist, expected)
def __init__(self, ipython_app, kernel_manager, notebook_manager,
cluster_manager, log,
base_project_url, settings_overrides):
handlers = [
(r"/", ProjectDashboardHandler),
(r"/login", LoginHandler),
(r"/logout", LogoutHandler),
(r"/new", NewHandler),
(r"/%s" % _notebook_id_regex, NamedNotebookHandler),
(r"/%s/copy" % _notebook_id_regex, NotebookCopyHandler),
(r"/%s/print" % _notebook_id_regex, PrintNotebookHandler),
(r"/kernels", MainKernelHandler),
(r"/kernels/%s" % _kernel_id_regex, KernelHandler),
(r"/kernels/%s/%s" % (_kernel_id_regex, _kernel_action_regex), KernelActionHandler),
(r"/kernels/%s/iopub" % _kernel_id_regex, IOPubHandler),
(r"/kernels/%s/shell" % _kernel_id_regex, ShellHandler),
(r"/notebooks", NotebookRootHandler),
(r"/notebooks/%s" % _notebook_id_regex, NotebookHandler),
(r"/rstservice/render", RSTHandler),
(r"/files/(.*)", AuthenticatedFileHandler, {'path' : notebook_manager.notebook_dir}),
(r"/clusters", MainClusterHandler),
(r"/clusters/%s/%s" % (_profile_regex, _cluster_action_regex), ClusterActionHandler),
(r"/clusters/%s" % _profile_regex, ClusterProfileHandler),
]
# Python < 2.6.5 doesn't accept unicode keys in f(**kwargs), and
# base_project_url will always be unicode, which will in turn
# make the patterns unicode, and ultimately result in unicode
# keys in kwargs to handler._execute(**kwargs) in tornado.
# This enforces that base_project_url be ascii in that situation.
#
# Note that the URLs these patterns check against are escaped,
# and thus guaranteed to be ASCII: 'héllo' is really 'h%C3%A9llo'.
base_project_url = py3compat.unicode_to_str(base_project_url, 'ascii')
settings = dict(
template_path=os.path.join(os.path.dirname(__file__), "templates"),
static_path=os.path.join(os.path.dirname(__file__), "static"),
cookie_secret=os.urandom(1024),
login_url="%s/login"%(base_project_url.rstrip('/')),
)
# allow custom overrides for the tornado web app.
settings.update(settings_overrides)
# prepend base_project_url onto the patterns that we match
new_handlers = []
for handler in handlers:
pattern = url_path_join(base_project_url, handler[0])
new_handler = tuple([pattern]+list(handler[1:]))
new_handlers.append( new_handler )
super(NotebookWebApplication, self).__init__(new_handlers, **settings)
self.kernel_manager = kernel_manager
self.notebook_manager = notebook_manager
self.cluster_manager = cluster_manager
self.ipython_app = ipython_app
self.read_only = self.ipython_app.read_only
self.log = log
def imaris_pull(self, line):
'''Line-level magic that pulls objects from Imaris.
You can pull: spots, surfaces, filaments or cells.
In [6]: %imaris_pull spots
Out[6]: ['Spots 1', 'Spots 1 Selection']
In [7]: spots[_[0]]
Out[7]: 36ffa5dc-2456-4c94-9ad3-e639acd67122 -t:tcp -h 192.168.1.11 -p 62088
'''
if line == "":
print(self.imaris_pull.__doc__)
return
ret = []
outputs = line.split(' ')
for output in outputs:
output = unicode_to_str(output).lower()
if output in ["spots", "surfaces", "filaments", "cells"]:
objs = BridgeLib.GetSurpassObjects(self.vImaris, output)
self.shell.push({output: objs})
ret.append(objs.keys())
else:
raise ImarisMagicError('No such object available')
if len(outputs) == 1:
return ret[0]
else:
return ret
def test_encode_images():
# invalid data, but the header and footer are from real files
pngdata = b'\x89PNG\r\n\x1a\nblahblahnotactuallyvalidIEND\xaeB`\x82'
jpegdata = b'\xff\xd8\xff\xe0\x00\x10JFIFblahblahjpeg(\xa0\x0f\xff\xd9'
pdfdata = b'%PDF-1.\ntrailer<</Root<</Pages<</Kids[<</MediaBox[0 0 3 3]>>]>>>>>>'
fmt = {
'image/png' : pngdata,
'image/jpeg' : jpegdata,
'application/pdf' : pdfdata
}
encoded = encode_images(fmt)
for key, value in iteritems(fmt):
# encoded has unicode, want bytes
decoded = decodestring(encoded[key].encode('ascii'))
nt.assert_equal(decoded, value)
encoded2 = encode_images(encoded)
nt.assert_equal(encoded, encoded2)
b64_str = {}
for key, encoded in iteritems(encoded):
b64_str[key] = unicode_to_str(encoded)
encoded3 = encode_images(b64_str)
nt.assert_equal(encoded3, b64_str)
for key, value in iteritems(fmt):
# encoded3 has str, want bytes
decoded = decodestring(str_to_bytes(encoded3[key]))
nt.assert_equal(decoded, value)
def __init__(self, ipython_app, kernel_manager, notebook_manager,
cluster_manager, log,
base_project_url, settings_overrides):
handlers = [
(r"/", ProjectDashboardHandler),
(r"/login", LoginHandler),
(r"/logout", LogoutHandler),
(r"/new", NewHandler),
(r"/%s" % _notebook_id_regex, NamedNotebookHandler),
(r"/%s/copy" % _notebook_id_regex, NotebookCopyHandler),
(r"/%s/print" % _notebook_id_regex, PrintNotebookHandler),
(r"/kernels", MainKernelHandler),
(r"/kernels/%s" % _kernel_id_regex, KernelHandler),
(r"/kernels/%s/%s" % (_kernel_id_regex, _kernel_action_regex), KernelActionHandler),
(r"/kernels/%s/iopub" % _kernel_id_regex, IOPubHandler),
(r"/kernels/%s/shell" % _kernel_id_regex, ShellHandler),
(r"/notebooks", NotebookRootHandler),
(r"/notebooks/%s" % _notebook_id_regex, NotebookHandler),
(r"/rstservice/render", RSTHandler),
(r"/files/(.*)", AuthenticatedFileHandler, {'path' : notebook_manager.notebook_dir}),
(r"/clusters", MainClusterHandler),
(r"/clusters/%s/%s" % (_profile_regex, _cluster_action_regex), ClusterActionHandler),
(r"/clusters/%s" % _profile_regex, ClusterProfileHandler),
]
# Python < 2.6.5 doesn't accept unicode keys in f(**kwargs), and
# base_project_url will always be unicode, which will in turn
# make the patterns unicode, and ultimately result in unicode
# keys in kwargs to handler._execute(**kwargs) in tornado.
# This enforces that base_project_url be ascii in that situation.
#
# Note that the URLs these patterns check against are escaped,
# and thus guaranteed to be ASCII: 'héllo' is really 'h%C3%A9llo'.
base_project_url = py3compat.unicode_to_str(base_project_url, 'ascii')
settings = dict(
template_path=os.path.join(os.path.dirname(__file__), "templates"),
static_path=os.path.join(os.path.dirname(__file__), "static"),
cookie_secret=os.urandom(1024),
login_url="%s/login"%(base_project_url.rstrip('/')),
)
# allow custom overrides for the tornado web app.
settings.update(settings_overrides)
# prepend base_project_url onto the patterns that we match
new_handlers = []
for handler in handlers:
pattern = url_path_join(base_project_url, handler[0])
new_handler = tuple([pattern]+list(handler[1:]))
new_handlers.append( new_handler )
super(NotebookWebApplication, self).__init__(new_handlers, **settings)
self.kernel_manager = kernel_manager
self.notebook_manager = notebook_manager
self.cluster_manager = cluster_manager
self.ipython_app = ipython_app
self.read_only = self.ipython_app.read_only
self.log = log
def ferret_getdata(self, line):
'''
Line-level magic to get data from ferret.
In [18]: %%ferret
....: use levitus_climatology
In [19]: %ferret_getdata tempdict = temp
....: Message: tempdict is now available in python as a dictionary containing the variable's metadata and data array.
In [20]: print tempdict.keys()
....: ['axis_coords', 'axis_types', 'data_unit', 'axis_units', 'title', 'axis_names', 'missing_value', 'data']
'''
args = parse_argstring(self.ferret_getdata, line)
code = unicode_to_str(''.join(args.code))
pythonvariable = code.split('=')[0]
ferretvariable = code.split('=')[1]
exec('%s = pyferret.getdata("%s", %s)' % (pythonvariable, ferretvariable, args.create_mask) )
self.shell.push("%s" % pythonvariable)
publish_display_data('ferretMagic.ferret', {'text/html':
'<pre style="background-color:#F2F5A9; border-radius: 4px 4px 4px 4px; font-size: smaller">' +
'Message: ' + pythonvariable + " is now available in python as a dictionary containing the variable's metadata and data array."
'</pre>'
})
def imaris_pull(self, line):
'''Line-level magic that pulls objects from Imaris.
You can pull: spots, surfaces, filaments or cells.
In [6]: %imaris_pull spots
Out[6]: ['Spots 1', 'Spots 1 Selection']
In [7]: spots[_[0]]
Out[7]: 36ffa5dc-2456-4c94-9ad3-e639acd67122 -t:tcp -h 192.168.1.11 -p 62088
'''
if line == "":
print(self.imaris_pull.__doc__)
return
ret = []
outputs = line.split(' ')
for output in outputs:
output = unicode_to_str(output).lower()
if output in ["spots", "surfaces", "filaments", "cells"]:
objs = BridgeLib.GetSurpassObjects(self.vImaris,output)
self.shell.push({output: objs})
ret.append(objs.keys())
else:
raise ImarisMagicError('No such object available')
if len(outputs) == 1:
return ret[0]
else:
return ret
def _replace_rlhist_multiline(self, source_raw, hlen_before_cell):
"""Store multiple lines as a single entry in history"""
# do nothing without readline or disabled multiline
if not self.has_readline or not self.multiline_history:
return hlen_before_cell
# windows rl has no remove_history_item
if not hasattr(self.readline, "remove_history_item"):
return hlen_before_cell
# skip empty cells
if not source_raw.rstrip():
return hlen_before_cell
# nothing changed do nothing, e.g. when rl removes consecutive dups
hlen = self.readline.get_current_history_length()
if hlen == hlen_before_cell:
return hlen_before_cell
for i in range(hlen - hlen_before_cell):
self.readline.remove_history_item(hlen - i - 1)
stdin_encoding = get_stream_enc(sys.stdin, 'utf-8')
self.readline.add_history(
py3compat.unicode_to_str(source_raw.rstrip(), stdin_encoding))
return self.readline.get_current_history_length()
def complete_request(self, text):
line = str_to_unicode(readline.get_line_buffer())
byte_cursor_pos = readline.get_endidx()
# get_endidx is a byte offset
# account for multi-byte characters to get correct cursor_pos
bytes_before_cursor = cast_bytes(line)[:byte_cursor_pos]
cursor_pos = len(cast_unicode(bytes_before_cursor))
# send completion request to kernel
# Give the kernel up to 5s to respond
msg_id = self.client.complete(
code=line,
cursor_pos=cursor_pos,
)
msg = self.client.shell_channel.get_msg(timeout=self.timeout)
if msg['parent_header']['msg_id'] == msg_id:
content = msg['content']
cursor_start = content['cursor_start']
matches = [line[:cursor_start] + m for m in content['matches']]
if content["cursor_end"] < cursor_pos:
extra = line[content["cursor_end"]:cursor_pos]
matches = [m + extra for m in matches]
matches = [unicode_to_str(m) for m in matches]
return matches
return []
def eval(self, line):
"""Evaluate a line or block of code in R
Parameters
----------
line : str
The code to execute
Examples
--------
>>> r.eval('''
... x = 1:5
... df = data.frame(x=x, y=x^2)
... print(df)
... ''')
x y
1 1 1
2 2 4
3 3 9
4 4 16
5 5 25
"""
old_writeconsole = ri.get_writeconsole()
ri.set_writeconsole(self._write_console)
try:
value = ri.baseenv['eval'](ri.parse(line))
except (ri.RRuntimeError, ValueError) as exception:
warning_or_other_msg = self._flush() # otherwise next return seems to have copy of error
raise RInterpreterError(line, str_to_unicode(str(exception)), warning_or_other_msg)
text_output = self._flush()
ri.set_writeconsole(old_writeconsole)
if text_output:
sys.stdout.write(unicode_to_str(text_output, 'utf-8'))
def _replace_rlhist_multiline(self, source_raw, hlen_before_cell):
"""Store multiple lines as a single entry in history"""
# do nothing without readline or disabled multiline
if not self.has_readline or not self.multiline_history:
return hlen_before_cell
# windows rl has no remove_history_item
if not hasattr(self.readline, "remove_history_item"):
return hlen_before_cell
# skip empty cells
if not source_raw.rstrip():
return hlen_before_cell
# nothing changed do nothing, e.g. when rl removes consecutive dups
hlen = self.readline.get_current_history_length()
if hlen == hlen_before_cell:
return hlen_before_cell
for i in range(hlen - hlen_before_cell):
self.readline.remove_history_item(hlen - i - 1)
stdin_encoding = get_stream_enc(sys.stdin, 'utf-8')
self.readline.add_history(py3compat.unicode_to_str(source_raw.rstrip(),
stdin_encoding))
return self.readline.get_current_history_length()
def test_encode_images():
# invalid data, but the header and footer are from real files
pngdata = b'\x89PNG\r\n\x1a\nblahblahnotactuallyvalidIEND\xaeB`\x82'
jpegdata = b'\xff\xd8\xff\xe0\x00\x10JFIFblahblahjpeg(\xa0\x0f\xff\xd9'
pdfdata = b'%PDF-1.\ntrailer<</Root<</Pages<</Kids[<</MediaBox[0 0 3 3]>>]>>>>>>'
fmt = {
'image/png': pngdata,
'image/jpeg': jpegdata,
'application/pdf': pdfdata
}
encoded = encode_images(fmt)
for key, value in iteritems(fmt):
# encoded has unicode, want bytes
decoded = decodestring(encoded[key].encode('ascii'))
nt.assert_equal(decoded, value)
encoded2 = encode_images(encoded)
nt.assert_equal(encoded, encoded2)
b64_str = {}
for key, encoded in iteritems(encoded):
b64_str[key] = unicode_to_str(encoded)
encoded3 = encode_images(b64_str)
nt.assert_equal(encoded3, b64_str)
for key, value in iteritems(fmt):
# encoded3 has str, want bytes
decoded = decodestring(str_to_bytes(encoded3[key]))
nt.assert_equal(decoded, value)
def url_escape(path):
"""Escape special characters in a URL path
Turns '/foo bar/' into '/foo%20bar/'
"""
parts = py3compat.unicode_to_str(path, encoding='utf8').split('/')
return u'/'.join([quote(p) for p in parts])
def warpscript(self, line, cell=None, local_ns=None):
args = parse_argstring(self.warpscript, line)
if args.url is not None:
if len(args.url[0]) > 1:
warnings.warn("\nOnly one url accepted", UserWarning)
url = unicode_to_str(args.url[0][0])
binary_code = code.encode('UTF-8')
req = urllib2.Request(url, binary_code)
rsp = urllib2.urlopen(req)
content = rsp.read()
if not silent:
str_response = content.decode('UTF-8')
obj = json.loads(str_response)
stream_content = {'name': 'stdout', 'text': content.decode('UTF-8')}
self.send_response(self.iopub_socket, 'stream', stream_content)
return {'status': 'ok',
# The base class increments the execution count
'execution_count': self.execution_count,
'payload': [],
'user_expressions': {},
}
def url_escape(path):
"""Escape special characters in a URL path
Turns '/foo bar/' into '/foo%20bar/'
"""
parts = py3compat.unicode_to_str(path, encoding='utf8').split('/')
return u'/'.join([quote(p) for p in parts])
def ferret_getdata(self, line):
'''
Line-level magic to get data from ferret.
In [18]: %%ferret
....: use levitus_climatology
In [19]: %ferret_getdata tempdict = temp
....: Message: tempdict is now available in python as a dictionary containing the variable's metadata and data array.
In [20]: print(tempdict.keys())
....: ['axis_coords', 'axis_types', 'data_unit', 'axis_units', 'title', 'axis_names', 'missing_value', 'data']
'''
args = parse_argstring(self.ferret_getdata, line)
code = unicode_to_str(''.join(args.code))
pythonvariable = code.split('=')[0]
ferretvariable = code.split('=')[1]
exec('%s = pyferret.getdata("%s", %s)' % (pythonvariable, ferretvariable, args.create_mask) )
self.shell.push("%s" % pythonvariable)
publish_display_data({'text/html':
'<pre style="background-color:#F2F5A9; border-radius: 4px 4px 4px 4px; font-size: smaller">' +
'Message: ' + pythonvariable + " is now available in python as a dictionary containing the variable's metadata and data array."
'</pre>'
})
def ferret_putdata(self, line):
'''
Line-level magic to put data to ferret.
In [31]: import numpy as np
....: b = {}
....: b['name']='myvar'
....: b['name']='myvar'
....: x=np.linspace(-np.pi*4, np.pi*4, 500)
....: b['data']=np.sin(x)/x
....: b.keys()
Out[31]: ['data', 'name']
In [32]: %ferret_putdata --axis_pos (1,0,2,3,4,5) b
....: Message: b is now available in ferret as myvar
'''
args = parse_argstring(self.ferret_putdata, line)
ferretvariable = unicode_to_str(args.code[0])
if args.axis_pos:
axis_pos_variable = eval(args.axis_pos)
else:
axis_pos_variable = None
pyferret.putdata(self.shell.user_ns[ferretvariable], axis_pos=axis_pos_variable)
publish_display_data('ferretMagic.ferret', {'text/html':
'<pre style="background-color:#F2F5A9; border-radius: 4px 4px 4px 4px; font-size: smaller">' +
'Message: ' + ferretvariable + ' is now available in ferret as ' + self.shell.user_ns[ferretvariable]['name'] +
'</pre>'
})
def ferret_putdata(self, line):
'''
Line-level magic to put data to ferret.
In [31]: import numpy as np
....: b = {}
....: b['name']='myvar'
....: b['name']='myvar'
....: x=np.linspace(-np.pi*4, np.pi*4, 500)
....: b['data']=np.sin(x)/x
....: b.keys()
Out[31]: ['data', 'name']
In [32]: %ferret_putdata --axis_pos (1,0,2,3,4,5) b
....: Message: b is now available in ferret as myvar
'''
args = parse_argstring(self.ferret_putdata, line)
ferretvariable = unicode_to_str(args.code[0])
if args.axis_pos:
axis_pos_variable = eval(args.axis_pos)
else:
axis_pos_variable = None
pyferret.putdata(self.shell.user_ns[ferretvariable], axis_pos=axis_pos_variable)
publish_display_data({'text/html':
'<pre style="background-color:#F2F5A9; border-radius: 4px 4px 4px 4px; font-size: smaller">' +
'Message: ' + ferretvariable + ' is now available in ferret as ' + self.shell.user_ns[ferretvariable]['name'] +
'</pre>'
})
def pprofile(self, line, cell=''):
"""PProfile IPython extension"""
args = parse_argstring(self.pprofile, line)
# set the output directory in which to store the profile output and create it
output_dir = get_arg(args.name, unicode_to_str)
output_dir = driver.create_output_dir(output_dir)
# get the width and height
width = get_arg(args.width, int)
height = get_arg(args.height, int)
# get the code
command_line_code = ' '.join(args.code) + '\n' if len(
args.code) > 0 else ''
code = unicode_to_str(command_line_code + cell)
# compile the code block and execute the code block
ccode = driver.compile_code(code, output_dir)
self.shell.run_code(ccode)
# process the profile output and return an IFrame to display the profile information in
uri = driver.process_profile(output_dir)
display(IFrame(uri, width=width, height=height))
def complete_request(self, text):
line = str_to_unicode(readline.get_line_buffer())
byte_cursor_pos = readline.get_endidx()
# get_endidx is a byte offset
# account for multi-byte characters to get correct cursor_pos
bytes_before_cursor = cast_bytes(line)[:byte_cursor_pos]
cursor_pos = len(cast_unicode(bytes_before_cursor))
# send completion request to kernel
# Give the kernel up to 5s to respond
msg_id = self.client.complete(
code=line,
cursor_pos=cursor_pos,
)
msg = self.client.shell_channel.get_msg(timeout=self.timeout)
if msg['parent_header']['msg_id'] == msg_id:
content = msg['content']
cursor_start = content['cursor_start']
matches = [ line[:cursor_start] + m for m in content['matches'] ]
if content["cursor_end"] < cursor_pos:
extra = line[content["cursor_end"]: cursor_pos]
matches = [m + extra for m in matches]
matches = [ unicode_to_str(m) for m in matches ]
return matches
return []
def shebang(line, cell):
cmd = shlex.split(unicode_to_str(line))
p = Popen(cmd, stdout=PIPE, stderr=PIPE, stdin=PIPE)
out,err = p.communicate(cell)
if err:
print >> sys.stderr, err
print out
def test_replace_multiline_hist_replaces_empty_line(self):
"""Test that multiline history skips empty line cells"""
ip = get_ipython()
ip.multiline_history = True
ip.readline.add_history('line0')
#start cell
hlen_b4_cell = ip.readline.get_current_history_length()
ip.readline.add_history('l€ne1')
ip.readline.add_history('line2')
hlen_b4_cell = ip._replace_rlhist_multiline('l€ne1\nline2',
hlen_b4_cell)
ip.readline.add_history('')
hlen_b4_cell = ip._replace_rlhist_multiline('', hlen_b4_cell)
ip.readline.add_history('l€ne3')
hlen_b4_cell = ip._replace_rlhist_multiline('l€ne3', hlen_b4_cell)
ip.readline.add_history(' ')
hlen_b4_cell = ip._replace_rlhist_multiline(' ', hlen_b4_cell)
ip.readline.add_history('\t')
ip.readline.add_history('\t ')
hlen_b4_cell = ip._replace_rlhist_multiline('\t', hlen_b4_cell)
ip.readline.add_history('line4')
hlen_b4_cell = ip._replace_rlhist_multiline('line4', hlen_b4_cell)
self.assertEqual(ip.readline.get_current_history_length(),
hlen_b4_cell)
hist = self.rl_hist_entries(ip.readline, 4)
# expect no empty cells in history
expected = ['line0', 'l€ne1\nline2', 'l€ne3', 'line4']
# perform encoding, in case of casting due to ASCII locale
enc = sys.stdin.encoding or "utf-8"
expected = [ py3compat.unicode_to_str(e, enc) for e in expected ]
self.assertEqual(hist, expected)
def test_replace_multiline_hist_replaces_twice(self):
"""Test that multiline entries are replaced twice"""
ip = get_ipython()
ip.multiline_history = True
ip.readline.add_history(u'line0')
#start cell
hlen_b4_cell = ip.readline.get_current_history_length()
ip.readline.add_history('l€ne1')
ip.readline.add_history('line2')
#replace cell with single line
hlen_b4_cell = ip._replace_rlhist_multiline(u'l€ne1\nline2',
hlen_b4_cell)
ip.readline.add_history('l€ne3')
ip.readline.add_history('line4')
#replace cell with single line
hlen_b4_cell = ip._replace_rlhist_multiline(u'l€ne3\nline4',
hlen_b4_cell)
self.assertEqual(ip.readline.get_current_history_length(),
hlen_b4_cell)
hist = self.rl_hist_entries(ip.readline, 3)
expected = [u'line0', u'l€ne1\nline2', u'l€ne3\nline4']
# perform encoding, in case of casting due to ASCII locale
enc = sys.stdin.encoding or "utf-8"
expected = [py3compat.unicode_to_str(e, enc) for e in expected]
self.assertEqual(hist, expected)
def test_replace_multiline_hist_replaces_empty_line(self):
"""Test that multiline history skips empty line cells"""
ip = get_ipython()
ip.multiline_history = True
ip.readline.add_history('line0')
#start cell
hlen_b4_cell = ip.readline.get_current_history_length()
ip.readline.add_history('l€ne1')
ip.readline.add_history('line2')
hlen_b4_cell = ip._replace_rlhist_multiline('l€ne1\nline2',
hlen_b4_cell)
ip.readline.add_history('')
hlen_b4_cell = ip._replace_rlhist_multiline('', hlen_b4_cell)
ip.readline.add_history('l€ne3')
hlen_b4_cell = ip._replace_rlhist_multiline('l€ne3', hlen_b4_cell)
ip.readline.add_history(' ')
hlen_b4_cell = ip._replace_rlhist_multiline(' ', hlen_b4_cell)
ip.readline.add_history('\t')
ip.readline.add_history('\t ')
hlen_b4_cell = ip._replace_rlhist_multiline('\t', hlen_b4_cell)
ip.readline.add_history('line4')
hlen_b4_cell = ip._replace_rlhist_multiline('line4', hlen_b4_cell)
self.assertEquals(ip.readline.get_current_history_length(),
hlen_b4_cell)
hist = self.rl_hist_entries(ip.readline, 4)
# expect no empty cells in history
expected = ['line0', 'l€ne1\nline2', 'l€ne3', 'line4']
# perform encoding, in case of casting due to ASCII locale
enc = sys.stdin.encoding or "utf-8"
expected = [py3compat.unicode_to_str(e, enc) for e in expected]
self.assertEquals(hist, expected)
def url_escape(path):
"""Escape special characters in a URL path
Turns '/foo bar/' into '/foo%20bar/'
"""
parts = py3compat.unicode_to_str(path).split("/")
return u"/".join([quote(p) for p in parts])
def init_settings(self,
ipython_app,
kernel_manager,
contents_manager,
cluster_manager,
session_manager,
kernel_spec_manager,
log,
base_url,
default_url,
settings_overrides,
jinja_env_options=None):
# Python < 2.6.5 doesn't accept unicode keys in f(**kwargs), and
# base_url will always be unicode, which will in turn
# make the patterns unicode, and ultimately result in unicode
# keys in kwargs to handler._execute(**kwargs) in tornado.
# This enforces that base_url be ascii in that situation.
#
# Note that the URLs these patterns check against are escaped,
# and thus guaranteed to be ASCII: 'héllo' is really 'h%C3%A9llo'.
base_url = py3compat.unicode_to_str(base_url, 'ascii')
template_path = settings_overrides.get(
"template_path",
os.path.join(os.path.dirname(__file__), "templates"))
jenv_opt = jinja_env_options if jinja_env_options else {}
env = Environment(loader=FileSystemLoader(template_path), **jenv_opt)
settings = dict(
# basics
log_function=log_request,
base_url=base_url,
default_url=default_url,
template_path=template_path,
static_path=ipython_app.static_file_path,
static_handler_class=FileFindHandler,
static_url_prefix=url_path_join(base_url, '/static/'),
# authentication
cookie_secret=ipython_app.cookie_secret,
login_url=url_path_join(base_url, '/login'),
password=ipython_app.password,
# managers
kernel_manager=kernel_manager,
contents_manager=contents_manager,
cluster_manager=cluster_manager,
session_manager=session_manager,
kernel_spec_manager=kernel_spec_manager,
# IPython stuff
nbextensions_path=ipython_app.nbextensions_path,
websocket_url=ipython_app.websocket_url,
mathjax_url=ipython_app.mathjax_url,
config=ipython_app.config,
jinja2_env=env,
)
# allow custom overrides for the tornado web app.
settings.update(settings_overrides)
return settings
def compress_user(path):
"""Reverse of :func:`os.path.expanduser`
"""
path = py3compat.unicode_to_str(path, sys.getfilesystemencoding())
home = os.path.expanduser('~')
if path.startswith(home):
path = "~" + path[len(home):]
return path
def compress_user(path):
"""Reverse of :func:`os.path.expanduser`
"""
path = py3compat.unicode_to_str(path, sys.getfilesystemencoding())
home = os.path.expanduser('~')
if path.startswith(home):
path = "~" + path[len(home):]
return path
def _replace_rlhist_multiline(self, source_raw, hlen_before_cell):
"""Store multiple lines as a single entry in history"""
if self.multiline_history and self.has_readline:
hlen = self.readline.get_current_history_length()
for i in range(hlen - hlen_before_cell):
self.readline.remove_history_item(hlen - i - 1)
stdin_encoding = sys.stdin.encoding or "utf-8"
self.readline.add_history(py3compat.unicode_to_str(source_raw.rstrip(),
stdin_encoding))
def url_unescape(path):
"""Unescape special characters in a URL path
Turns '/foo%20bar/' into '/foo bar/'
"""
return u'/'.join([
py3compat.str_to_unicode(unquote(p), encoding='utf8')
for p in py3compat.unicode_to_str(path, encoding='utf8').split('/')
])
def url_unescape(path):
"""Unescape special characters in a URL path
Turns '/foo%20bar/' into '/foo bar/'
"""
return u'/'.join([
py3compat.str_to_unicode(unquote(p))
for p in py3compat.unicode_to_str(path).split('/')
])
def _replace_rlhist_multiline(self, source_raw, hlen_before_cell):
"""Store multiple lines as a single entry in history"""
if self.multiline_history and self.has_readline:
hlen = self.readline.get_current_history_length()
for i in range(hlen - hlen_before_cell):
self.readline.remove_history_item(hlen - i - 1)
stdin_encoding = sys.stdin.encoding or "utf-8"
self.readline.add_history(
py3compat.unicode_to_str(source_raw.rstrip(), stdin_encoding))
def init_settings(
self,
ipython_app,
kernel_manager,
contents_manager,
cluster_manager,
session_manager,
kernel_spec_manager,
log,
base_url,
default_url,
settings_overrides,
jinja_env_options=None,
):
# Python < 2.6.5 doesn't accept unicode keys in f(**kwargs), and
# base_url will always be unicode, which will in turn
# make the patterns unicode, and ultimately result in unicode
# keys in kwargs to handler._execute(**kwargs) in tornado.
# This enforces that base_url be ascii in that situation.
#
# Note that the URLs these patterns check against are escaped,
# and thus guaranteed to be ASCII: 'héllo' is really 'h%C3%A9llo'.
base_url = py3compat.unicode_to_str(base_url, "ascii")
template_path = settings_overrides.get("template_path", os.path.join(os.path.dirname(__file__), "templates"))
jenv_opt = jinja_env_options if jinja_env_options else {}
env = Environment(loader=FileSystemLoader(template_path), **jenv_opt)
settings = dict(
# basics
log_function=log_request,
base_url=base_url,
default_url=default_url,
template_path=template_path,
static_path=ipython_app.static_file_path,
static_handler_class=FileFindHandler,
static_url_prefix=url_path_join(base_url, "/static/"),
# authentication
cookie_secret=ipython_app.cookie_secret,
login_url=url_path_join(base_url, "/login"),
password=ipython_app.password,
# managers
kernel_manager=kernel_manager,
contents_manager=contents_manager,
cluster_manager=cluster_manager,
session_manager=session_manager,
kernel_spec_manager=kernel_spec_manager,
# IPython stuff
nbextensions_path=ipython_app.nbextensions_path,
websocket_url=ipython_app.websocket_url,
mathjax_url=ipython_app.mathjax_url,
config=ipython_app.config,
jinja2_env=env,
)
# allow custom overrides for the tornado web app.
settings.update(settings_overrides)
return settings
def pinfo(self, obj, oname='', formatter=None, info=None, detail_level=0):
"""Show detailed information about an object.
Optional arguments:
- oname: name of the variable pointing to the object.
- formatter: special formatter for docstrings (see pdoc)
- info: a structure with some information fields which may have been
precomputed already.
- detail_level: if set to 1, more information is given.
"""
info = self.info(obj,
oname=oname,
formatter=formatter,
info=info,
detail_level=detail_level)
displayfields = []
for title, key in self.pinfo_fields1:
field = info[key]
if field is not None:
displayfields.append((title, field.rstrip()))
# Source or docstring, depending on detail level and whether
# source found.
if detail_level > 0 and info['source'] is not None:
displayfields.append(
("Source",
self.format(py3compat.unicode_to_str(info['source']))))
elif info['docstring'] is not None:
displayfields.append(("Docstring", info["docstring"]))
# Constructor info for classes
if info['isclass']:
if info['init_definition'] or info['init_docstring']:
displayfields.append(("Constructor information", ""))
if info['init_definition'] is not None:
displayfields.append(
(" Definition", info['init_definition'].rstrip()))
if info['init_docstring'] is not None:
displayfields.append(
(" Docstring", indent(info['init_docstring'])))
# Info for objects:
else:
for title, key in self.pinfo_fields_obj:
field = info[key]
if field is not None:
displayfields.append((title, field.rstrip()))
# Finally send to printer/pager:
if displayfields:
page.page(self._format_fields(displayfields))
def psource(self, obj, oname=''):
"""Print the source code for an object."""
# Flush the source cache because inspect can return out-of-date source
linecache.checkcache()
try:
src = getsource(obj)
except:
self.noinfo('source', oname)
else:
page.page(self.format(py3compat.unicode_to_str(src)))
def psource(self,obj,oname=''):
"""Print the source code for an object."""
# Flush the source cache because inspect can return out-of-date source
linecache.checkcache()
try:
src = getsource(obj)
except:
self.noinfo('source',oname)
else:
page.page(self.format(py3compat.unicode_to_str(src)))
def _getdef(self, obj, oname=''):
"""Return the definition header for any callable object.
If any exception is generated, None is returned instead and the
exception is suppressed."""
try:
# We need a plain string here, NOT unicode!
hdef = oname + inspect.formatargspec(*getargspec(obj))
return py3compat.unicode_to_str(hdef, 'ascii')
except:
return None
def lpy_rule(self, line):
'''
TODO : Update the doc string
Line-level magic that pulls a variable from Lpy.
In [1]: %lpy_axiom 'A'
In [2]: %lpy_rule 'A --> F A'
In [3]: %%lpy -n 10
'''
rule = unicode_to_str(line)
self._lsys.addRule(rule)
def _getdef(self,obj,oname=''):
"""Return the definition header for any callable object.
If any exception is generated, None is returned instead and the
exception is suppressed."""
try:
# We need a plain string here, NOT unicode!
hdef = oname + inspect.formatargspec(*getargspec(obj))
return py3compat.unicode_to_str(hdef, 'ascii')
except:
return None
def test_unicode_repr():
u = u"üniçodé"
ustr = unicode_to_str(u)
class C(object):
def __repr__(self):
return ustr
c = C()
p = pretty.pretty(c)
nt.assert_equal(p, u)
p = pretty.pretty([c])
nt.assert_equal(p, u'[%s]' % u)
def test_unicode_repr():
u = u"üniçodé"
ustr = unicode_to_str(u)
class C(object):
def __repr__(self):
return ustr
c = C()
p = pretty.pretty(c)
nt.assert_equal(p, u)
p = pretty.pretty([c])
nt.assert_equal(p, u'[%s]' % u)
def pinfo(self,obj,oname='',formatter=None,info=None,detail_level=0):
"""Show detailed information about an object.
Optional arguments:
- oname: name of the variable pointing to the object.
- formatter: special formatter for docstrings (see pdoc)
- info: a structure with some information fields which may have been
precomputed already.
- detail_level: if set to 1, more information is given.
"""
info = self.info(obj, oname=oname, formatter=formatter,
info=info, detail_level=detail_level)
displayfields = []
for title, key in self.pinfo_fields1:
field = info[key]
if field is not None:
displayfields.append((title, field.rstrip()))
# Source or docstring, depending on detail level and whether
# source found.
if detail_level > 0 and info['source'] is not None:
displayfields.append(("Source", self.format(py3compat.unicode_to_str(info['source']))))
elif info['docstring'] is not None:
displayfields.append(("Docstring", info["docstring"]))
# Constructor info for classes
if info['isclass']:
if info['init_definition'] or info['init_docstring']:
displayfields.append(("Constructor information", ""))
if info['init_definition'] is not None:
displayfields.append((" Definition",
info['init_definition'].rstrip()))
if info['init_docstring'] is not None:
displayfields.append((" Docstring",
indent(info['init_docstring'])))
# Info for objects:
else:
for title, key in self.pinfo_fields_obj:
field = info[key]
if field is not None:
displayfields.append((title, field.rstrip()))
# Finally send to printer/pager:
if displayfields:
page.page(self._format_fields(displayfields))
def _run_cmd(self):
# On Windows, use os.system instead of subprocess.call, because I
# was having problems with subprocess and I just don't know enough
# about win32 to debug this reliably. Os.system may be the 'old
# fashioned' way to do it, but it works just fine. If someone
# later can clean this up that's fine, as long as the tests run
# reliably in win32.
# What types of problems are you having. They may be related to
# running Python in unboffered mode. BG.
for ndx, arg in enumerate(self.call_args):
# Enclose in quotes if necessary and legal
if ' ' in arg and os.path.isfile(arg) and arg[0] != '"':
self.call_args[ndx] = '"%s"' % arg
call_args = [py3compat.cast_unicode(x) for x in self.call_args]
cmd = py3compat.unicode_to_str(u' '.join(call_args))
return os.system(cmd)
def _run_cmd(self):
# On Windows, use os.system instead of subprocess.call, because I
# was having problems with subprocess and I just don't know enough
# about win32 to debug this reliably. Os.system may be the 'old
# fashioned' way to do it, but it works just fine. If someone
# later can clean this up that's fine, as long as the tests run
# reliably in win32.
# What types of problems are you having. They may be related to
# running Python in unboffered mode. BG.
for ndx, arg in enumerate(self.call_args):
# Enclose in quotes if necessary and legal
if ' ' in arg and os.path.isfile(arg) and arg[0] != '"':
self.call_args[ndx] = '"%s"' % arg
call_args = [py3compat.cast_unicode(x) for x in self.call_args]
cmd = py3compat.unicode_to_str(u' '.join(call_args))
return os.system(cmd)
def eval(self, line):
'''
Parse and evaluate a line with rpy2.
Returns the output to R's stdout() connection
and the value of eval(parse(line)).
'''
old_writeconsole = ri.get_writeconsole()
ri.set_writeconsole(self.write_console)
try:
value = ri.baseenv['eval'](ri.parse(line))
except (ri.RRuntimeError, ValueError) as exception:
warning_or_other_msg = self.flush() # otherwise next return seems to have copy of error
raise RMagicError(unicode_to_str('parsing and evaluating line "%s".\nR error message: "%s"\n R stdout:"%s"\n' %
(line, str_to_unicode(exception.message, 'utf-8'), warning_or_other_msg)))
text_output = self.flush()
ri.set_writeconsole(old_writeconsole)
return text_output, value
def init_settings(self, ipython_app, kernel_manager, notebook_manager,
cluster_manager, log,
base_project_url, settings_overrides):
# Python < 2.6.5 doesn't accept unicode keys in f(**kwargs), and
# base_project_url will always be unicode, which will in turn
# make the patterns unicode, and ultimately result in unicode
# keys in kwargs to handler._execute(**kwargs) in tornado.
# This enforces that base_project_url be ascii in that situation.
#
# Note that the URLs these patterns check against are escaped,
# and thus guaranteed to be ASCII: 'héllo' is really 'h%C3%A9llo'.
base_project_url = py3compat.unicode_to_str(base_project_url, 'ascii')
template_path = os.path.join(os.path.dirname(__file__), "templates")
settings = dict(
# basics
base_project_url=base_project_url,
base_kernel_url=ipython_app.base_kernel_url,
template_path=template_path,
static_path=ipython_app.static_file_path,
static_handler_class = FileFindHandler,
static_url_prefix = url_path_join(base_project_url,'/static/'),
# authentication
cookie_secret=os.urandom(1024),
login_url=url_path_join(base_project_url,'/login'),
cookie_name='username-%s' % uuid.uuid4(),
read_only=ipython_app.read_only,
password=ipython_app.password,
# managers
kernel_manager=kernel_manager,
notebook_manager=notebook_manager,
cluster_manager=cluster_manager,
# IPython stuff
mathjax_url=ipython_app.mathjax_url,
max_msg_size=ipython_app.max_msg_size,
config=ipython_app.config,
use_less=ipython_app.use_less,
jinja2_env=Environment(loader=FileSystemLoader(template_path)),
)
# allow custom overrides for the tornado web app.
settings.update(settings_overrides)
return settings
def __call__(self, obj):
"""Compute the pretty representation of the object."""
if not self.pprint:
return pretty._safe_repr(obj)
else:
# This uses use StringIO, as cStringIO doesn't handle unicode.
stream = StringIO()
# self.newline.encode() is a quick fix for issue gh-597. We need to
# ensure that stream does not get a mix of unicode and bytestrings,
# or it will cause trouble.
printer = pretty.RepresentationPrinter(stream, self.verbose,
self.max_width, unicode_to_str(self.newline),
singleton_pprinters=self.singleton_printers,
type_pprinters=self.type_printers,
deferred_pprinters=self.deferred_printers)
printer.pretty(obj)
printer.flush()
return stream.getvalue()
def lpy_axiom(self, line):
'''
Line-level magic that define the Lsystm Axiom to Lpy.
`line` should be made up of a string or an AxialTree available in the
IPython namespace::
In [1]: X = 'F(10)[(+30)F(1)]A'
In [10]: %lpy_axiom X
In [11]: %%lpy -n 10
Out[11]: 2.0
'''
axiom = line
axiom = unicode_to_str(axiom)
self._lsys.axiom = axiom
def __call__(self, obj):
"""Compute the pretty representation of the object."""
if not self.pprint:
return pretty._safe_repr(obj)
else:
# This uses use StringIO, as cStringIO doesn't handle unicode.
stream = StringIO()
# self.newline.encode() is a quick fix for issue gh-597. We need to
# ensure that stream does not get a mix of unicode and bytestrings,
# or it will cause trouble.
printer = pretty.RepresentationPrinter(stream, self.verbose,
self.max_width, unicode_to_str(self.newline),
singleton_pprinters=self.singleton_printers,
type_pprinters=self.type_printers,
deferred_pprinters=self.deferred_printers)
printer.pretty(obj)
printer.flush()
return stream.getvalue()
def ghci_push(self, line):
'''
Line-level magic that pushes a variable to ghci.
`line` should be made up of whitespace separated variable names in the
IPython namespace::
In [7]: x = 1
In [8]: %ghci_push x
In [11]: %ghci x + 2
Out[11]: 3
'''
inputs = line.split(' ')
for input in inputs:
input = unicode_to_str(input)
self._ghci.put(input, self.shell.user_ns[input])
def _raw_input(self, prompt, ident, parent):
# Flush output before making the request.
sys.stderr.flush()
sys.stdout.flush()
# flush the stdin socket, to purge stale replies
while True:
try:
self.stdin_socket.recv_multipart(zmq.NOBLOCK)
except zmq.ZMQError as e:
if e.errno == zmq.EAGAIN:
break
else:
raise
# Send the input request.
content = json_clean(dict(prompt=prompt))
self.session.send(self.stdin_socket,
u'input_request',
content,
parent,
ident=ident)
# Await a response.
while True:
try:
ident, reply = self.session.recv(self.stdin_socket, 0)
except Exception:
self.log.warn("Invalid Message:", exc_info=True)
except KeyboardInterrupt:
# re-raise KeyboardInterrupt, to truncate traceback
raise KeyboardInterrupt
else:
break
try:
value = py3compat.unicode_to_str(reply['content']['value'])
except:
self.log.error("Got bad raw_input reply: ")
self.log.error("%s", parent)
value = ''
if value == '\x04':
# EOF
raise EOFError
return value
def __call__(self, obj):
"""
Compute the pretty representation of the object.
Adapted from ``IPython.core.formatters.PlainTextPrettyPrint``.
INPUT:
- ``obj`` -- anything.
OUTPUT:
String. The plain text representation.
EXAMPLES::
sage: from sage.repl.interpreter import get_test_shell
sage: shell = get_test_shell()
sage: fmt = shell.display_formatter.formatters['text/plain']
sage: fmt
<sage.repl.display.formatter.SagePlainTextFormatter object at 0x...>
sage: shell.displayhook.compute_format_data(2)
({u'text/plain': '2'}, {})
sage: a = identity_matrix(ZZ, 2)
sage: shell.displayhook.compute_format_data([a,a])
({u'text/plain': '[\n[1 0] [1 0]\n[0 1], [0 1]\n]'}, {})
sage: fmt.set_display('ascii_art')
sage: shell.displayhook.compute_format_data([a,a])
({u'text/plain': '[ [1 0] [1 0] ]\n[ [0 1], [0 1] ]'}, {})
sage: i = var('i')
sage: shell.displayhook.compute_format_data(sum(i*x^i, i, 0, 10))
({u'text/plain': ' 10 9 8 7 6 5 4 3
2 \n10*x + 9*x + 8*x + 7*x + 6*x + 5*x + 4*x + 3*x + 2*x + x'},
{})
sage: fmt.set_display('simple')
"""
import StringIO
stream = StringIO.StringIO()
printer = self._pretty_printer_class(
stream, self.max_width, unicode_to_str(self.newline))
printer.pretty(obj)
printer.flush()
return stream.getvalue()
def idl_pull(self, line):
'''
Line-level magic that pulls a variable from IDL.
In [18]: %idl x = [1, 2, 3, 4] & y = 'hello'
In [19]: %idl_pull x y
In [20]: x
Out[20]:
array([ 1, 2, 3, 4], dtype=int16)
In [21]: y
Out[21]: array('hello', dtype='|S5')
'''
outputs = line.split(' ')
for output in outputs:
output = unicode_to_str(output)
self.shell.push({output: self._idl.ev(output)})
def idl_pull(self, line):
'''
Line-level magic that pulls a variable from IDL.
In [18]: %idl x = [1, 2, 3, 4] & y = 'hello'
In [19]: %idl_pull x y
In [20]: x
Out[20]:
array([ 1, 2, 3, 4], dtype=int16)
In [21]: y
Out[21]: array('hello', dtype='|S5')
'''
outputs = line.split(' ')
for output in outputs:
output = unicode_to_str(output)
self.shell.push({output: self._idl.ev(output)})
def octave_pull(self, line):
'''
Line-level magic that pulls a variable from Octave.
In [18]: _ = %octave x = [1 2; 3 4]; y = 'hello'
In [19]: %octave_pull x y
In [20]: x
Out[20]:
array([[ 1., 2.],
[ 3., 4.]])
In [21]: y
Out[21]: 'hello'
'''
outputs = line.split(' ')
for output in outputs:
output = unicode_to_str(output)
self.shell.push({output: self._oct.get(output)})
def octave_pull(self, line):
'''
Line-level magic that pulls a variable from Octave.
In [18]: _ = %octave x = [1 2; 3 4]; y = 'hello'
In [19]: %octave_pull x y
In [20]: x
Out[20]:
array([[ 1., 2.],
[ 3., 4.]])
In [21]: y
Out[21]: 'hello'
'''
outputs = line.split(' ')
for output in outputs:
output = unicode_to_str(output)
self.shell.push({output: self._oct.get(output)})
def mathematica_pull(self, line):
'''
Line-level magic that pulls a variable from Mathematica.
In [18]: _ = %mathematica x = {{1,2}, {3,4}}; y = 'hello';
In [19]: %mathematica_pull x y
In [20]: x
Out[20]:
array([[ 1., 2.],
[ 3., 4.]])
In [21]: y
Out[21]: 'hello'
'''
outputs = line.split(' ')
for output in outputs:
output = unicode_to_str(output)
self.shell.push({output: self._mathematica.pull(output)})