unqualified exec is not allowed (Python 2.7.6)

[topiwala]

Followed the recipe in the manual for block cipher when packaging, but on extracting the executable, get the following error:

  File "<string>", line 28, in <module>
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-2.1.1dev_9d0e0ad-py2.7.egg/PyInstaller/loader/pyi_importers.py", line 203, in load_module
    is_pkg, bytecode = self._pyz_archive.extract(fullname)
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-2.1.1dev_9d0e0ad-py2.7.egg/PyInstaller/loader/pyi_archive.py", line 377, in extract
    raise ImportError("PYZ entry '%s' failed to decompress" % name)
ImportError: PYZ entry 'os' failed to decompress

I also had to add

import PyInstaller.loader.pyi_crypto as pyi_crypto

to be able to follow the manual's example.

Does anyone have a recipe that I can follow?

[htgoebel]

Please try if this occurs on the current python3-branch-head, too.

[matysek]

@topiwala There is no specific cypher recipe in the wiki. But the manual for the python3 branch contains this .spec example:

block_cipher = pyi_crypto.PyiBlockCipher(key='test_key')
a = Analysis(['test_onefile_crypto.py'], cipher=block_cipher)
pyz = PYZ(a.pure, cipher=block_cipher)
exe = EXE(pyz,
          a.scripts,
          a.binaries,
          a.zipfiles,
          a.datas,
          name='test_onefile_crypto')

Please note that you do not need to use the line import PyInstaller.loader.pyi_crypto as pyi_crypto anymore.

[topiwala]

I have a python2.7 project, and I don't think we can move to python3. I tried packaging with python3 branch, and ran into this error:

Is there any other way? Perhaps a merge of the changes from this branch into the main dev branch for just the cipher support?

Traceback (most recent call last):
  File "/usr/local/bin/pyinstaller", line 9, in <module>
    load_entry_point('PyInstaller==3.0.dev7165951', 'console_scripts', 'pyinstaller')()
  File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 552, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2672, in load_entry_point
    return ep.load()
  File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2345, in load
    return self.resolve()
  File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2351, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0.dev7165951-py2.7.egg/PyInstaller/main.py", line 20, in <module>
    import PyInstaller.building.build_main
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0.dev7165951-py2.7.egg/PyInstaller/building/build_main.py", line 614
    exec(text, spec_namespace)
SyntaxError: unqualified exec is not allowed in function 'build' it contains a nested function with free variables

[codewarrior0]

I think that's a bug - the exec() should have both locals and globals arguments.

[codewarrior0]

Can you try changing this line: exec(text, spec_namespace)

To this: exec(text, spec_namespace, {})

And tell me if it fixes the problem?

[topiwala]

That didn't work. However, a minor modification

exec text in spec_namespace

caused me to get further along, until I hit the error below:

from PyInstaller.utils.hooks.hookutils import relpath_to_config_or_make
Traceback (most recent call last):
  File "/usr/local/bin/pyinstaller", line 9, in <module>
    load_entry_point('PyInstaller===3.0dev-7165951-mod', 'console_scripts', 'pyinstaller')()
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0dev_7165951_mod-py2.7.egg/PyInstaller/main.py", line 97, in run
    run_build(opts, spec_file, pyi_config)
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0dev_7165951_mod-py2.7.egg/PyInstaller/main.py", line 50, in run_build
    PyInstaller.building.build_main.main(pyi_config, spec_file, **opts.__dict__)
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0dev_7165951_mod-py2.7.egg/PyInstaller/building/build_main.py", line 671, in main
    build(specfile, kw.get('distpath'), kw.get('workpath'), kw.get('clean_build'))
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0dev_7165951_mod-py2.7.egg/PyInstaller/building/build_main.py", line 614, in build
    exec text in spec_namespace
  File "<string>", line 96, in <module>
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0dev_7165951_mod-py2.7.egg/PyInstaller/building/build_main.py", line 181, in __init__
    self.__postinit__()
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0dev_7165951_mod-py2.7.egg/PyInstaller/building/datastruct.py", line 151, in __postinit__
    self.assemble()
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0dev_7165951_mod-py2.7.egg/PyInstaller/building/build_main.py", line 382, in assemble
    imphook_object = ImportHook(imported_name, hooks_cache[imported_name])
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0dev_7165951_mod-py2.7.egg/PyInstaller/building/imphook.py", line 255, in __init__
    self._module = importlib_load_source('pyi_hook.'+self._name, self._filename)
  File "/usr/local/lib/python2.7/dist-packages/PyInstaller-3.0dev_7165951_mod-py2.7.egg/PyInstaller/hooks/hook-distutils.py", line 24, in <module>
    _MAKEFILE = sysconfig.get_makefile_filename()
AttributeError: 'module' object has no attribute 'get_makefile_filename'

[codewarrior0]

These are your system specs from another issue:

Python: 2.7.6
OS: Ubuntu 14.04.1 LTS (64-bit)
Kernel version: 3.13.0-32-generic

I have a feeling this would work for you on Python 2.7.9 (it has further changes for python 3 compatibility), but I found out 2.7.6 is the last version offered on that version of Ubuntu, so I won't ask you to change Python versions.

The exec problem is Python issue 21591, fixed in 2.7.9, so we'll need to use a different syntax for executing the specfile (maybe runpy.run_path()?).

The get_makefile_filename problem is Python issue 22199 which says the old attribute was _get_makefile_filename, also fixed in 2.7.9. So we'll have to check for the old attribute first.

(Or we could just say "Requires Python 2.7.9" and then @topiwala is out of luck...)

[htgoebel]

I tested this with Python 2.7.4:

fails

def build():
    namespace = {
        'TkPKG': lambda *args, **kwargs: _old_api_error('TkPKG'),
    }
    exec("print 'hallo'", namespace)
build()

fails

def build():
    def TkPKG(*args, **kwargs): _old_api_error('TkPKG')
    namespace = {'TkPKG': TkPKG}
    exec("print 'hallo'", namespace)
build()

passes (but does not what we want)

def build():
    def TkPKG(*args, **kwargs): pass # mind the `pass` here!
    namespace = {'TkPKG': TkPKG}
    exec("print 'hallo'", namespace)
build()

passes

def TkPKG(*args, **kwargs): _old_api_error('TkPKG')
def build():
    namespace = {'TkPKG': TkPKG}
    exec("print 'hallo'", namespace)
build()

passes

def build():
    def TkPKG(*args, **kwargs): 
        global _old_api_error
        _old_api_error('TkPKG')
    namespace = {'TkPKG': TkPKG}
    exec("print 'hallo'", namespace)
build()

I'm going to implement this work-around.

[uzpei]

I have the same issue as topiwala - I cannot use a block cipher with my Python 2.7 project (same error). System info:

Python 2.7.6
LSB Version:    core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch:core-4.1-amd64:core-4.1-noarch:security-4.0-amd64:security-4.0-noarch:security-4.1-amd64:security-4.1-noarch
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.3 LTS
Release:    14.04
Codename:   trusty

[htgoebel]

Ups, I already fixed this in fd59a96, but did not close the issue.

[htgoebel]

@uzpei This ticket was discussing several different issues.Please open a new ticket describing "same error". Thanks,