Hello,
I recently updated my Sage and it hasn't been building properly since
then. I am using MacOS 10.12.5 and Sage 8.0.beta12. I have attached a copy
of the crash report. Please let me know if you could find the problem.
Thanks,
Ben Barros
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***************************************************************************
IPython post-mortem report
{'commit_hash': u'5c9c918',
'commit_source': 'installation',
'default_encoding': 'UTF-8',
'ipython_path':
'/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/IPython',
'ipython_version': '5.1.0',
'os_name': 'posix',
'platform': 'Darwin-16.6.0-x86_64-i386-64bit',
'sys_executable': '/Users/bbarros/Sage-develop/local/bin/python',
'sys_platform': 'darwin',
'sys_version': '2.7.13 (default, Jun 2 2017, 10:20:05) \n[GCC 4.2.1
Compatible Apple LLVM 8.1.0 (clang-802.0.41)]'}
***************************************************************************
***************************************************************************
Crash traceback:
---------------------------------------------------------------------------
---------------------------------------------------------------------------
RuntimeError Python 2.7.13: /Users/bbarros/Sage-develop/local/bin/python
Tue Jun 27 12:31:03 2017
A problem occurred executing Python code. Here is the sequence of function
calls leading up to the error, with the most recent (innermost) call last.
/Users/bbarros/Sage-develop/src/bin/sage-ipython in <module>()
1 #!/usr/bin/env python
2 # -*- coding: utf-8 -*-
3 """
4 Sage IPython startup script.
5 """
6
7 from sage.repl.interpreter import SageTerminalApp
8
9 app = SageTerminalApp.instance()
---> 10 app.initialize()
global app.initialize = <bound method SageTerminalApp.initialize of
<sage.repl.interpreter.SageTerminalApp object at 0x104b42690>>
11 app.start()
<decorator-gen-109> in initialize(self=<sage.repl.interpreter.SageTerminalApp
object>, argv=None)
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/traitlets/config/application.pyc
in catch_config_error(method=<function initialize>,
app=<sage.repl.interpreter.SageTerminalApp object>, *args=(None,), **kwargs={})
72 TRAITLETS_APPLICATION_RAISE_CONFIG_FILE_ERROR = False
73 else:
74 raise ValueError("Unsupported value for environment variable:
'TRAITLETS_APPLICATION_RAISE_CONFIG_FILE_ERROR' is set to '%s' which is none of
{'0', '1', 'false', 'true', ''}."% _envvar )
75
76
77 @decorator
78 def catch_config_error(method, app, *args, **kwargs):
79 """Method decorator for catching invalid config
(Trait/ArgumentErrors) during init.
80
81 On a TraitError (generally caused by bad config), this will print
the trait's
82 message, and exit the app.
83
84 For use on init methods, to prevent invoking excepthook on invalid
input.
85 """
86 try:
---> 87 return method(app, *args, **kwargs)
method = <function initialize at 0x105d529b0>
app = <sage.repl.interpreter.SageTerminalApp object at 0x104b42690>
args = (None,)
kwargs = {}
88 except (TraitError, ArgumentError) as e:
89 app.print_help()
90 app.log.fatal("Bad config encountered during initialization:")
91 app.log.fatal(str(e))
92 app.log.debug("Config at the time: %s", app.config)
93 app.exit(1)
94
95
96 class ApplicationError(Exception):
97 pass
98
99
100 class LevelFormatter(logging.Formatter):
101 """Formatter with additional `highlevel` record
102
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/IPython/terminal/ipapp.pyc
in initialize(self=<sage.repl.interpreter.SageTerminalApp object>, argv=None)
294
295 return super(TerminalIPythonApp, self).parse_command_line(argv)
296
297 @catch_config_error
298 def initialize(self, argv=None):
299 """Do actions after construct, but before starting the app."""
300 super(TerminalIPythonApp, self).initialize(argv)
301 if self.subapp is not None:
302 # don't bother initializing further, starting subapp
303 return
304 # print self.extra_args
305 if self.extra_args and not self.something_to_run:
306 self.file_to_run = self.extra_args[0]
307 self.init_path()
308 # create the shell
--> 309 self.init_shell()
self.init_shell = <bound method SageTerminalApp.init_shell of
<sage.repl.interpreter.SageTerminalApp object at 0x104b42690>>
310 # and draw the banner
311 self.init_banner()
312 # Now a variety of things that happen after the banner is
printed.
313 self.init_gui_pylab()
314 self.init_extensions()
315 self.init_code()
316
317 def init_shell(self):
318 """initialize the InteractiveShell instance"""
319 # Create an InteractiveShell instance.
320 # shell.display_banner should always be False for the terminal
321 # based app, because we call shell.show_banner() by hand below
322 # so the banner shows *before* all extension loading stuff.
323 self.shell = TerminalInteractiveShell.instance(parent=self,
324 profile_dir=self.profile_dir,
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/repl/interpreter.pyc
in init_shell(self=<sage.repl.interpreter.SageTerminalApp object>)
747 self.shell.has_sage_extensions = SAGE_EXTENSION in
self.extensions
748
749 # Load the %lprun extension if available
750 try:
751 import line_profiler
752 except ImportError:
753 pass
754 else:
755 self.extensions.append('line_profiler')
756
757 if self.shell.has_sage_extensions:
758 self.extensions.remove(SAGE_EXTENSION)
759
760 # load sage extension here to get a crash if
761 # something is wrong with the sage library
--> 762 self.shell.extension_manager.load_extension(SAGE_EXTENSION)
self.shell.extension_manager.load_extension = <bound method
ExtensionManager.load_extension of <IPython.core.extensions.ExtensionManager
object at 0x105f296d0>>
global SAGE_EXTENSION = 'sage'
763
764
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/IPython/core/extensions.pyc
in load_extension(self=<IPython.core.extensions.ExtensionManager object>,
module_str='sage')
70
71 Returns the string "already loaded" if the extension is already
loaded,
72 "no load function" if the module doesn't have a
load_ipython_extension
73 function, or None if it succeeded.
74 """
75 if module_str in self.loaded:
76 return "already loaded"
77
78 from IPython.utils.syspathcontext import prepended_to_syspath
79
80 with self.shell.builtin_trap:
81 if module_str not in sys.modules:
82 with prepended_to_syspath(self.ipython_extension_dir):
83 __import__(module_str)
84 mod = sys.modules[module_str]
---> 85 if self._call_load_ipython_extension(mod):
self._call_load_ipython_extension = <bound method
ExtensionManager._call_load_ipython_extension of
<IPython.core.extensions.ExtensionManager object at 0x105f296d0>>
mod = <module 'sage' from
'/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/__init__.pyc'>
86 self.loaded.add(module_str)
87 else:
88 return "no load function"
89
90 def unload_extension(self, module_str):
91 """Unload an IPython extension by its module name.
92
93 This function looks up the extension's name in ``sys.modules``
and
94 simply calls ``mod.unload_ipython_extension(self)``.
95
96 Returns the string "no unload function" if the extension
doesn't define
97 a function to unload itself, "not loaded" if the extension
isn't loaded,
98 otherwise None.
99 """
100 if module_str not in self.loaded:
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/IPython/core/extensions.pyc
in _call_load_ipython_extension(self=<IPython.core.extensions.ExtensionManager
object>, mod=<module 'sage' from
'/Users/bbarros/Sage-develop...l/lib/python2.7/site-packages/sage/__init__.pyc'>)
117 """
118 from IPython.utils.syspathcontext import prepended_to_syspath
119
120 if (module_str in self.loaded) and (module_str in sys.modules):
121 self.unload_extension(module_str)
122 mod = sys.modules[module_str]
123 with prepended_to_syspath(self.ipython_extension_dir):
124 reload(mod)
125 if self._call_load_ipython_extension(mod):
126 self.loaded.add(module_str)
127 else:
128 self.load_extension(module_str)
129
130 def _call_load_ipython_extension(self, mod):
131 if hasattr(mod, 'load_ipython_extension'):
--> 132 mod.load_ipython_extension(self.shell)
mod.load_ipython_extension = <function load_ipython_extension at
0x104b3e2a8>
self.shell = <sage.repl.interpreter.SageTerminalInteractiveShell object
at 0x105d7bad0>
133 return True
134
135 def _call_unload_ipython_extension(self, mod):
136 if hasattr(mod, 'unload_ipython_extension'):
137 mod.unload_ipython_extension(self.shell)
138 return True
139
140 def install_extension(self, url, filename=None):
141 """Download and install an IPython extension.
142
143 If filename is given, the file will be so named (inside the
extension
144 directory). Otherwise, the name from the URL will be used. The
file must
145 have a .py or .zip extension; otherwise, a ValueError will be
raised.
146
147 Returns the full path to the installed file.
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/__init__.pyc
in
load_ipython_extension(*args=(<sage.repl.interpreter.SageTerminalInteractiveShell
object>,))
1 __all__ = ['all']
2
3 # Make sure that the correct zlib library is loaded. This is needed
4 # to prevent the system zlib to be loaded instead of the Sage one.
5 # See https://trac.sagemath.org/ticket/23122
6 import zlib
7
8 # IPython calls this when starting up
9 def load_ipython_extension(*args):
10 import sage.repl.ipython_extension
---> 11 sage.repl.ipython_extension.load_ipython_extension(*args)
sage.repl.ipython_extension.load_ipython_extension = <function
load_ipython_extension at 0x1064a7578>
args = (<sage.repl.interpreter.SageTerminalInteractiveShell object at
0x105d7bad0>,)
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/repl/ipython_extension.pyc
in wrapper(*args=(<sage.repl.interpreter.SageTerminalInteractiveShell
object>,), **kwargs={})
546 ....: if work:
547 ....: return 'foo worked'
548 ....: raise RuntimeError("foo didn't work")
549 sage: foo(False)
550 Traceback (most recent call last):
551 ...
552 RuntimeError: foo didn't work
553 sage: foo(True)
554 'foo worked'
555 sage: foo(False)
556 sage: foo(True)
557 """
558 @wraps(func)
559 def wrapper(*args, **kwargs):
560 if not wrapper.has_run:
--> 561 result = func(*args, **kwargs)
result = undefined
global func = undefined
args = (<sage.repl.interpreter.SageTerminalInteractiveShell object at
0x105d7bad0>,)
kwargs = {}
562 wrapper.has_run = True
563 return result
564 wrapper.has_run = False
565 return wrapper
566
567
568 @run_once
569 def load_ipython_extension(ip):
570 """
571 Load the extension in IPython.
572 """
573 # this modifies ip
574 SageCustomizations(shell=ip)
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/repl/ipython_extension.pyc
in
load_ipython_extension(ip=<sage.repl.interpreter.SageTerminalInteractiveShell
object>)
559 def wrapper(*args, **kwargs):
560 if not wrapper.has_run:
561 result = func(*args, **kwargs)
562 wrapper.has_run = True
563 return result
564 wrapper.has_run = False
565 return wrapper
566
567
568 @run_once
569 def load_ipython_extension(ip):
570 """
571 Load the extension in IPython.
572 """
573 # this modifies ip
--> 574 SageCustomizations(shell=ip)
global SageCustomizations = <class
'sage.repl.ipython_extension.SageCustomizations'>
global shell = undefined
ip = <sage.repl.interpreter.SageTerminalInteractiveShell object at
0x105d7bad0>
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/repl/ipython_extension.pyc
in __init__(self=<sage.repl.ipython_extension.SageCustomizations object>,
shell=<sage.repl.interpreter.SageTerminalInteractiveShell object>)
417 def __init__(self, shell=None):
418 """
419 Initialize the Sage plugin.
420 """
421 self.shell = shell
422
423 self.auto_magics = SageMagics(shell)
424 self.shell.register_magics(self.auto_magics)
425
426 import sage.misc.edit_module as edit_module
427 self.shell.set_hook('editor', edit_module.edit_devel)
428
429 self.init_inspector()
430 self.init_line_transforms()
431
--> 432 import sage.all # until sage's import hell is fixed
sage.all = undefined
433
434 self.shell.verbose_quit = True
435 self.set_quit_hook()
436
437 self.register_interface_magics()
438
439 if SAGE_IMPORTALL == 'yes':
440 self.init_environment()
441
442 def register_interface_magics(self):
443 """
444 Register magics for each of the Sage interfaces
445 """
446 from sage.repl.interface_magic import InterfaceMagic
447 InterfaceMagic.register_all(self.shell)
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/all.py in
<module>()
123 from sage.crypto.all import *
124 import sage.crypto.mq as mq
125
126 from sage.plot.all import *
127 from sage.plot.plot3d.all import *
128
129 from sage.coding.all import *
130 from sage.combinat.all import *
131
132 from sage.lfunctions.all import *
133
134 from sage.geometry.all import *
135 from sage.geometry.triangulation.all import *
136 from sage.geometry.riemannian_manifolds.all import *
137
--> 138 from sage.dynamics.all import *
global sage.dynamics.all = undefined
139
140 from sage.homology.all import *
141
142 from sage.quadratic_forms.all import *
143
144 from sage.games.all import *
145
146 from sage.media.all import *
147
148 from sage.logic.all import *
149
150 from sage.numerical.all import *
151
152 from sage.stats.all import *
153 import sage.stats.all as stats
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/dynamics/all.py
in <module>()
1 from sage.dynamics.interval_exchanges.all import *
2 from sage.dynamics.flat_surfaces.all import *
----> 3 from sage.dynamics.complex_dynamics.all import *
global sage.dynamics.complex_dynamics.all = undefined
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/dynamics/complex_dynamics/all.py
in <module>()
----> 1 from sage.dynamics.complex_dynamics.mandel_julia import mandelbrot_plot
global sage.dynamics.complex_dynamics.mandel_julia = undefined
global mandelbrot_plot = undefined
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/dynamics/complex_dynamics/mandel_julia.py
in <module>()
13 - Ben Barros
14
15 """
16
17
#*****************************************************************************
18 # Copyright (C) 2017 BEN BARROS <bbar...@slu.edu>
19 #
20 # This program is free software: you can redistribute it and/or modify
21 # it under the terms of the GNU General Public License as published by
22 # the Free Software Foundation, either version 2 of the License, or
23 # (at your option) any later version.
24 # http://www.gnu.org/licenses/
25
#*****************************************************************************
26
27 from sage.dynamics.complex_dynamics.mandel_julia_helper import
fast_mandel_plot
---> 28 from sagenb.notebook.interact import interact
global sagenb.notebook.interact = undefined
global interact = undefined
29 from sagenb.notebook.interact import slider
30 from sagenb.notebook.interact import input_box
31
32 def mandelbrot_plot(**kwds):
33 r"""
34 Interactive plot of the Mandelbrot set for the map `Q_c(z) = z^2 +
c`.
35
36 ALGORITHM:
37
38 Let each pixel in the image be a point `c \in \mathbb{C}` and
define the
39 map `Q_c(z) = z^2 + c`. If `|Q_{c}^{k}(c)| > 2` for some `k \geq
0`, it
40 follows that `Q_{c}^{n}(c) \to \infty`. Let `N` be the maximum
number of
41 iterations. Compute the first `N` points on the orbit of `0` under
`Q_c`.
42 If for any `k < N`, `|Q_{c}^{k}(0)| > 2`, we stop the iteration and
assign
43 a color to the point `c` based on how quickly `0` escaped to
infinity under
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sagenb/__init__.py
in <module>()
1 # -*- coding: utf-8 -*
2 # init
----> 3 from . import storage
global storage = undefined
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sagenb/storage/__init__.py
in <module>()
1 # -*- coding: utf-8 -*
2
----> 3 from .filesystem_storage import FilesystemDatastore
global filesystem_storage = undefined
global FilesystemDatastore = undefined
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sagenb/storage/filesystem_storage.py
in <module>()
37
38 """
39
40 import copy
41 import shutil
42 import tarfile
43 import tempfile
44 import os
45 try:
46 import cPickle as pickle
47 except ImportError:
48 import pickle
49 from six import iteritems
50
51 from .abstract_storage import Datastore
---> 52 from sagenb.misc.misc import set_restrictive_permissions, encoded_str
global sagenb.misc.misc = undefined
global set_restrictive_permissions = undefined
global encoded_str = undefined
53
54 from sage.misc.temporary_file import atomic_write
55
56 def is_safe(a):
57 """
58 Used when importing contents of various directories from Sage
59 worksheet files. We define this function to avoid the possibility
60 of a user crafting fake sws file such that extracting it creates
61 files outside where we want, e.g., by including .. or / in the
62 path of some file.
63 """
64 # NOTE: Windows port -- I'm worried about whether a.name will have
65 # / or \ on windows. The code below assume \.
66 return '..' not in a and not a.startswith('/')
67
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sagenb/misc/misc.py
in <module>()
191 elif 'DOT_SAGE' in os.environ:
192 DOT_SAGENB = os.environ['DOT_SAGE']
193 else:
194 DOT_SAGENB = os.path.join(os.environ['HOME'], '.sagenb')
195
196 try:
197 from sage.env import SAGE_URL
198 except ImportError:
199 SAGE_URL = 'http://sagemath.org'
200
201
202 # TODO: Get macros from server and user settings.
203 try:
204 import sage.all
205 from sage.misc.latex_macros import sage_mathjax_macros
--> 206 mathjax_macros = sage_mathjax_macros()
global mathjax_macros = undefined
global sage_mathjax_macros = None
207 except ImportError:
208 mathjax_macros = [
209 "ZZ : '{\\\\Bold{Z}}'",
210 "RR : '{\\\\Bold{R}}'",
211 "CC : '{\\\\Bold{C}}'",
212 "QQ : '{\\\\Bold{Q}}'",
213 "QQbar : '{\\\\overline{\\\\QQ}}'",
214 "GF : ['{\\\\Bold{F}_{#1}}', 1]",
215 "Zp : ['{\\\\ZZ_{#1}}', 1]",
216 "Qp : ['{\\\\QQ_{#1}}', 1]",
217 "Zmod : ['{\\\\ZZ/#1\\\\ZZ}', 1]",
218 "CIF : '{\\\\Bold{C}}'",
219 "CLF : '{\\\\Bold{C}}'",
220 "RDF : '{\\\\Bold{R}}'",
221 "RIF : '{\\\\Bold{I} \\\\Bold{R}}'",
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/misc/latex_macros.pyc
in sage_mathjax_macros()
190 return [produce_latex_macro(*x) for x in macros] +
sage_configurable_latex_macros
191
192 def sage_mathjax_macros():
193 r"""
194 Return list of MathJax macro definitions for Sage as
195 JavaScript. This feeds each item output by
196 :func:`sage_latex_macros` to
197 :func:`convert_latex_macro_to_mathjax`.
198
199 EXAMPLES::
200
201 sage: from sage.misc.latex_macros import sage_mathjax_macros
202 sage: sage_mathjax_macros()
203 ['ZZ: "\\\\Bold{Z}"', 'NN: "\\\\Bold{N}"', ...
204 """
--> 205 return [convert_latex_macro_to_mathjax(m) for m in
sage_latex_macros()]
global convert_latex_macro_to_mathjax = <function
convert_latex_macro_to_mathjax at 0x175848758>
m = undefined
global sage_latex_macros = <function sage_latex_macros at 0x1758487d0>
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/misc/latex_macros.pyc
in sage_latex_macros()
175 sage_configurable_latex_macros =
["\\newcommand{\\Bold}[1]{\\mathbf{#1}}"]
176
177 def sage_latex_macros():
178 r"""
179 Return list of LaTeX macros for Sage. This just runs the function
180 :func:`produce_latex_macro` on the list ``macros`` defined in this
181 file, and appends ``sage_configurable_latex_macros``. To add a new
182 macro for permanent use in Sage, modify ``macros``.
183
184 EXAMPLES::
185
186 sage: from sage.misc.latex_macros import sage_latex_macros
187 sage: sage_latex_macros()
188 ['\\newcommand{\\ZZ}{\\Bold{Z}}',
'\\newcommand{\\NN}{\\Bold{N}}', ...
189 """
--> 190 return [produce_latex_macro(*x) for x in macros] +
sage_configurable_latex_macros
global produce_latex_macro = <function produce_latex_macro at
0x1758486e0>
x = ['NN']
global macros = [['ZZ'], ['NN'], ['RR'], ['CC'], ['QQ'], ['QQbar'],
['GF', 2], ['Zp', 2], ['Qp', 2], ['Zmod', 2], ['CDF'], ['CIF'], ['CLF'],
['RDF'], ['RIF'], ['RLF'], ['CFF']]
global sage_configurable_latex_macros =
['\\newcommand{\\Bold}[1]{\\mathbf{#1}}']
191
192 def sage_mathjax_macros():
193 r"""
194 Return list of MathJax macro definitions for Sage as
195 JavaScript. This feeds each item output by
196 :func:`sage_latex_macros` to
197 :func:`convert_latex_macro_to_mathjax`.
198
199 EXAMPLES::
200
201 sage: from sage.misc.latex_macros import sage_mathjax_macros
202 sage: sage_mathjax_macros()
203 ['ZZ: "\\\\Bold{Z}"', 'NN: "\\\\Bold{N}"', ...
204 """
205 return [convert_latex_macro_to_mathjax(m) for m in
sage_latex_macros()]
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/misc/latex_macros.pyc
in produce_latex_macro(name='NN', *sample_args=())
83 real_name = names_split[0]
84 else:
85 module, real_name = names_split
86 newcommand = '\\newcommand{\\' + real_name + '}'
87 count = 0
88 args = "("
89 for x in sample_args:
90 count += 1
91 args += str(x) + ','
92 args += ')'
93 exec('from ' + module + ' import ' + real_name)
94 if count > 0:
95 defn = '[' + str(count) + ']{'
96 defn += eval('str(LatexCall()(' + real_name + args + '))') + '}'
97 else:
---> 98 defn = '{' + eval('str(LatexCall()(' + real_name + '))') + '}'
defn = undefined
global eval = undefined
real_name = 'NN'
99 count = 0
100 for x in sample_args:
101 count += 1
102 defn = defn.replace(str(x), "#" + str(count))
103 return newcommand + defn
104
105 def convert_latex_macro_to_mathjax(macro):
106 r"""
107 This converts a LaTeX macro definition (\newcommand...) to a
108 MathJax macro definition (MathJax.Macro...).
109
110 INPUT:
111
112 - ``macro`` - LaTeX macro definition
113
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/misc/latex_macros.pyc
in <module>()
/Users/bbarros/Sage-develop/local/lib/python2.7/site-packages/sage/misc/latex.pyc
in __call__(self=<sage.misc.latex.LatexCall instance>, x=UNRECOVERABLE REPR
FAILURE, combine_all=False)
914 \left[x, 2\right]
915
916 Check that :trac:`11775` is fixed::
917
918 sage: latex((x,2), combine_all=True)
919 x 2
920 """
921 if has_latex_attr(x):
922 return LatexExpr(x._latex_())
923 try:
924 f = latex_table[type(x)]
925 if isinstance(x, tuple):
926 return LatexExpr(f(x, combine_all=combine_all))
927 return LatexExpr(f(x))
928 except KeyError:
--> 929 return LatexExpr(str_function(str(x)))
global LatexExpr = <class 'sage.misc.latex.LatexExpr'>
global str_function = <function str_function at 0x1070706e0>
global str = undefined
x = undefined
930
931
932 class Latex(LatexCall):
933 r"""nodetex
934 Enter, e.g.,
935
936 ::
937
938 %latex
939 The equation $y^2 = x^3 + x$ defines an elliptic curve.
940 We have $2006 = \sage{factor(2006)}$.
941
942 in an input cell in the notebook to get a typeset version. Use
943 ``%latex_debug`` to get debugging output.
944
/Users/bbarros/Sage-develop/src/sage/misc/lazy_import.pyx in
sage.misc.lazy_import.LazyImport.__str__
(/Users/bbarros/Sage-develop/src/build/cythonized/sage/misc/lazy_import.c:3695)()
363 sage: lazy_ZZ
364 Integer Ring
365 sage: repr(lazy_ZZ)
366 'Integer Ring'
367 """
368 return repr(self.get_object())
369
370 def __str__(self):
371 """
372 TESTS::
373
374 sage: lazy_import('sage.all', 'ZZ'); lazy_ZZ = ZZ
375 sage: str(lazy_ZZ)
376 'Integer Ring'
377 """
--> 378 return str(self.get_object())
global str = undefined
global self.get_object = undefined
379
380 def __unicode__(self):
381 """
382 TESTS::
383
384 sage: lazy_import('sage.all', 'ZZ'); lazy_ZZ = ZZ
385 sage: unicode(lazy_ZZ)
386 u'Integer Ring'
387 """
388 return unicode(self.get_object())
389
390 def __nonzero__(self):
391 """
392 TESTS::
393
/Users/bbarros/Sage-develop/src/sage/misc/lazy_import.pyx in
sage.misc.lazy_import.LazyImport.get_object
(/Users/bbarros/Sage-develop/src/build/cythonized/sage/misc/lazy_import.c:2054)()
174 """
175 self._object = None
176 self._module = module
177 self._name = name
178 self._as_name = name if as_name is None else as_name
179 self._namespace = namespace
180 self._at_startup = at_startup
181 self._deprecation = deprecation
182
183 cdef inline get_object(self):
184 """
185 Faster, Cython-only partially-inlined version of
``_get_object``.
186 """
187 if likely(self._object is not None):
188 return self._object
--> 189 return self._get_object()
global self._get_object = undefined
190
191 cpdef _get_object(self):
192 """
193 Return the wrapped object, importing it if necessary.
194
195 OUTPUT:
196
197 - the wrapped object
198
199 EXAMPLES::
200
201 sage: from sage.misc.lazy_import import LazyImport
202 sage: my_integer_ring = LazyImport('sage.rings.all', 'ZZ')
203 sage: my_integer_ring._object is None
204 True
/Users/bbarros/Sage-develop/src/sage/misc/lazy_import.pyx in
sage.misc.lazy_import.LazyImport._get_object
(/Users/bbarros/Sage-develop/src/build/cythonized/sage/misc/lazy_import.c:2201)()
203 sage: my_integer_ring._object is None
204 True
205 sage: my_integer_ring._get_object()
206 Integer Ring
207 sage: my_integer_ring._object is None
208 False
209 sage: my_integer_ring = LazyImport('sage.rings.all', 'ZZ',
at_startup=True)
210 sage: my_integer_ring
211 Option ``at_startup=True`` for lazy import ZZ not needed
anymore
212 Integer Ring
213 """
214 if self._object is not None:
215 return self._object
216
217 if startup_guard and not self._at_startup:
--> 218 raise RuntimeError(f"resolving lazy import {self._name}
during startup")
global RuntimeError = undefined
global f = undefined
219 elif self._at_startup and not startup_guard:
220 print('Option ``at_startup=True`` for lazy import {0} not
needed anymore'.format(self._name))
221 self._object = getattr(__import__(self._module, {}, {},
[self._name]), self._name)
222 name = self._as_name
223 if self._deprecation is not None:
224 from sage.misc.superseded import deprecation
225 try:
226 trac_number, message = self._deprecation
227 except TypeError:
228 trac_number = self._deprecation
229 message = ('\nImporting {name} from here is deprecated.
' +
230 'If you need to use it, please import it directly
from' +
231 ' {module_name}').format(name=name,
module_name=self._module)
232 deprecation(trac_number, message)
233 # Replace the lazy import in the namespace by the actual object
RuntimeError: resolving lazy import NN during startup
***************************************************************************
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