क्रिप्टोग्राफी AssertionError: खेद है, लेकिन इस संस्करण केवल 100 नाम के समूहों

Question

मैं pip install ट्रैविस पर के माध्यम से कई अजगर पैकेज स्थापित करने का समर्थन करता है कर रहा हूँ,

language: python 
python: 
- '2.7' 
install: 
- pip install -r requirements/env.txt 

सब कुछ ठीक काम किया, लेकिन आज मैं हो रही निम्न त्रुटि शुरू:

Running setup.py install for cryptography 
Traceback (most recent call last): 
    File "<string>", line 1, in <module> 
    File "/tmp/pip-build-hKwMR3/cryptography/setup.py", line 334, in <module> 
    **keywords_with_side_effects(sys.argv) 
    File "/opt/python/2.7.9/lib/python2.7/distutils/core.py", line 111, in setup 
    _setup_distribution = dist = klass(attrs) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/setuptools/dist.py", line 269, in __init__ 
    _Distribution.__init__(self,attrs) 
    File "/opt/python/2.7.9/lib/python2.7/distutils/dist.py", line 287, in __init__ 
    self.finalize_options() 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/setuptools/dist.py", line 325, in finalize_options 
    ep.load()(self, ep.name, value) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/cffi/setuptools_ext.py", line 181, in cffi_modules 
    add_cffi_module(dist, cffi_module) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/cffi/setuptools_ext.py", line 48, in add_cffi_module 
    execfile(build_file_name, mod_vars) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/cffi/setuptools_ext.py", line 24, in execfile 
    exec(code, glob, glob) 
    File "src/_cffi_src/build_openssl.py", line 81, in <module> 
    extra_link_args=extra_link_args(compiler_type()), 
    File "/tmp/pip-build-hKwMR3/cryptography/src/_cffi_src/utils.py", line 61, in build_ffi_for_binding 
    extra_link_args=extra_link_args, 
    File "/tmp/pip-build-hKwMR3/cryptography/src/_cffi_src/utils.py", line 70, in build_ffi 
    ffi.cdef(cdef_source) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/cffi/api.py", line 105, in cdef 
    self._cdef(csource, override=override, packed=packed) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/cffi/api.py", line 119, in _cdef 
    self._parser.parse(csource, override=override, **options) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/cffi/cparser.py", line 299, in parse 
    self._internal_parse(csource) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/cffi/cparser.py", line 304, in _internal_parse 
    ast, macros, csource = self._parse(csource) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/cffi/cparser.py", line 260, in _parse 
    ast = _get_parser().parse(csource) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/cffi/cparser.py", line 40, in _get_parser 
    _parser_cache = pycparser.CParser() 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/pycparser/c_parser.py", line 87, in __init__ 
    outputdir=taboutputdir) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/pycparser/c_lexer.py", line 66, in build 
    self.lexer = lex.lex(object=self, **kwargs) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/pycparser/ply/lex.py", line 911, in lex 
    lexobj.readtab(lextab, ldict) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/site-packages/pycparser/ply/lex.py", line 233, in readtab 
    titem.append((re.compile(pat, lextab._lexreflags | re.VERBOSE), _names_to_funcs(func_name, fdict))) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/re.py", line 194, in compile 
    return _compile(pattern, flags) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/re.py", line 249, in _compile 
    p = sre_compile.compile(pattern, flags) 
    File "/home/travis/virtualenv/python2.7.9/lib/python2.7/sre_compile.py", line 583, in compile 
    "sorry, but this version only supports 100 named groups" 
AssertionError: sorry, but this version only supports 100 named groups 

समाधान?

Answer 1

वहाँ PyCParser साथ एक बग है - देखें https://github.com/pyca/cryptography/issues/3187

काम के आसपास अन्य संस्करण का उपयोग करने के लिए या द्विआधारी वितरण का उपयोग नहीं करने के लिए है।

pip install git+https://github.com/eliben/pycparser@release_v2.14 

या

pip install --no-binary pycparser