upstream/ipython Files · IPython/external/argparse/__init__.py

Don't let invalid aliases crash IPython...

Don't let invalid aliases crash IPython e.g. `ipython --foo-bar=5` would raise a SyntaxError parsing the commmand-line, because `self.config.foo-bar=5` would be evaluated. Syntax Errors on the rhs were already protected, but they could get into the lhs via the alias syntax. closes gh-886

MinRK - - Load All Authors

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        Thomas Spura
    
Unbundle of all external modules....

              r3408
            
      try:

          import argparse

        MinRK
    
use bundled argparse if system argparse is < 1.1

              r4669
            
          # don't use system argparse if older than 1.1:

          if argparse.__version__ < '1.1':

              raise ImportError

          else:

              from argparse import *

              from argparse import SUPPRESS

      except (ImportError, AttributeError):

        Thomas Spura
    
Unbundle of all external modules....

              r3408
            
          from _argparse import *

        Thomas Kluyver
    
Fix up argparse (update bundled version) so IPython starts whether or not argparse is installed system-wide.

              r3456
            
          from _argparse import SUPPRESS

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Thomas Spura Unbundle of all external modules....	r3408	try:
		import argparse
MinRK use bundled argparse if system argparse is < 1.1	r4669	# don't use system argparse if older than 1.1:
		if argparse.__version__ < '1.1':
		raise ImportError
		else:
		from argparse import *
		from argparse import SUPPRESS
		except (ImportError, AttributeError):
Thomas Spura Unbundle of all external modules....	r3408	from _argparse import *
Thomas Kluyver Fix up argparse (update bundled version) so IPython starts whether or not argparse is installed system-wide.	r3456	from _argparse import SUPPRESS