upstream/mercurial-mirror Files · tests/test-demandimport.py

demandimport: blacklist distutils.msvc9compiler (issue4475)...

demandimport: blacklist distutils.msvc9compiler (issue4475) This module depends on _winreg, which is windows-only. Recent versions of setuptools load distutils.msvc9compiler and expect it to ImportError immediately when on non-Windows platforms, so we need to let them do that. This breaks in an especially mystifying way, because setuptools uses vars() on the imported module. We then throw an exception, which vars doesn't pick up on well. For example: In [3]: class wat(object): ...: @property ...: def __dict__(self): ...: assert False ...: In [4]: vars(wat()) --------------------------------------------------------------------------- TypeError Traceback (most recent call last) <ipython-input-4-2781ada5ffe6> in <module>() ----> 1 vars(wat()) TypeError: vars() argument must have __dict__ attribute Which is similar to the problem we run into.

Augie Fackler - - Load All Authors

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      from mercurial import demandimport

      demandimport.enable()

      import os

      if os.name != 'nt':

          try:

              import distutils.msvc9compiler

              print ('distutils.msvc9compiler needs to be an immediate '

                     'importerror on non-windows platforms')

              distutils.msvc9compiler

          except ImportError:

              pass

      import re

      rsub = re.sub

      def f(obj):

          l = repr(obj)

          l = rsub("0x[0-9a-fA-F]+", "0x?", l)

          l = rsub("from '.*'", "from '?'", l)

          l = rsub("'<[a-z]*>'", "'<whatever>'", l)

          return l

      import os

      print "os =", f(os)

      print "os.system =", f(os.system)

      print "os =", f(os)

      from mercurial import util

      print "util =", f(util)

      print "util.system =", f(util.system)

      print "util =", f(util)

      print "util.system =", f(util.system)

      import re as fred

      print "fred =", f(fred)

      import sys as re

      print "re =", f(re)

      print "fred =", f(fred)

      print "fred.sub =", f(fred.sub)

      print "fred =", f(fred)

      print "re =", f(re)

      print "re.stderr =", f(re.stderr)

      print "re =", f(re)

      demandimport.disable()

      os.environ['HGDEMANDIMPORT'] = 'disable'

      demandimport.enable()

      from mercurial import node

      print "node =", f(node)

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				from mercurial import demandimport
				demandimport.enable()

				import os
				if os.name != 'nt':
				try:
				import distutils.msvc9compiler
				print ('distutils.msvc9compiler needs to be an immediate '
				'importerror on non-windows platforms')
				distutils.msvc9compiler
				except ImportError:
				pass

				import re

				rsub = re.sub
				def f(obj):
				l = repr(obj)
				l = rsub("0x[0-9a-fA-F]+", "0x?", l)
				l = rsub("from '.*'", "from '?'", l)
				l = rsub("'<[a-z]*>'", "'<whatever>'", l)
				return l

				import os

				print "os =", f(os)
				print "os.system =", f(os.system)
				print "os =", f(os)

				from mercurial import util

				print "util =", f(util)
				print "util.system =", f(util.system)
				print "util =", f(util)
				print "util.system =", f(util.system)

				import re as fred
				print "fred =", f(fred)

				import sys as re
				print "re =", f(re)

				print "fred =", f(fred)
				print "fred.sub =", f(fred.sub)
				print "fred =", f(fred)

				print "re =", f(re)
				print "re.stderr =", f(re.stderr)
				print "re =", f(re)

				demandimport.disable()
				os.environ['HGDEMANDIMPORT'] = 'disable'
				demandimport.enable()
				from mercurial import node
				print "node =", f(node)