Impossibile eseguire pip: UnicodeDecodeError

Question

Ho problemi con l'utilizzo di pip. Per esempio:

pip install numpy --upgrade 

mi dà il seguente errore:

Collecting numpy 
    Using cached numpy-1.10.2.tar.gz 
     Exception: 
    Traceback (most recent call last): 
     File "/usr/local/lib/python2.7/dist-packages/pip/basecommand.py", line 211, in main 
     status = self.run(options, args) 
     File "/usr/local/lib/python2.7/dist-packages/pip/commands/install.py", line 305, in run 
     wb.build(autobuilding=True) 
     File "/usr/local/lib/python2.7/dist-packages/pip/wheel.py", line 705, in build 
     self.requirement_set.prepare_files(self.finder) 
     File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 334, in prepare_files 
     functools.partial(self._prepare_file, finder)) 
     File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 321, in _walk_req_to_install 
     more_reqs = handler(req_to_install) 
     File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 505, in _prepare_file 
     abstract_dist.prep_for_dist() 
     File "/usr/local/lib/python2.7/dist-packages/pip/req/req_set.py", line 123, in prep_for_dist 
     self.req_to_install.run_egg_info() 
     File "/usr/local/lib/python2.7/dist-packages/pip/req/req_install.py", line 376, in run_egg_info 
     self.setup_py, self.name, 
     File "/usr/local/lib/python2.7/dist-packages/pip/req/req_install.py", line 347, in setup_py 
     import setuptools # noqa 
     File "/usr/local/lib/python2.7/dist-packages/setuptools/__init__.py", line 12, in <module> 
     from setuptools.extension import Extension 
     File "/usr/local/lib/python2.7/dist-packages/setuptools/extension.py", line 8, in <module> 
     from .dist import _get_unpatched 
     File "/usr/local/lib/python2.7/dist-packages/setuptools/dist.py", line 19, in <module> 
     import pkg_resources 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 3138, in <module> 
     @_call_aside 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 3124, in _call_aside 
     f(*args, **kwargs) 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 3151, in _initialize_master_working_set 
     working_set = WorkingSet._build_master() 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 652, in _build_master 
     ws = cls() 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 645, in __init__ 
     self.add_entry(entry) 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 701, in add_entry 
     for dist in find_distributions(entry, True): 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2139, in find_on_path 
     path_item, entry, metadata, precedence=DEVELOP_DIST 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2521, in from_location 
     py_version=py_version, platform=platform, **kw 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2835, in _reload_version 
     md_version = _version_from_file(self._get_metadata(self.PKG_INFO)) 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2486, in _version_from_file 
     line = next(iter(version_lines), '') 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2654, in _get_metadata 
     for line in self.get_metadata_lines(name): 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2030, in get_metadata_lines 
     return yield_lines(self.get_metadata(name)) 
     File "/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 2025, in get_metadata 
     metadata = f.read() 
     File "/usr/lib/python2.7/codecs.py", line 296, in decode 
     (result, consumed) = self._buffer_decode(data, self.errors, final) 
    UnicodeDecodeError: 'utf8' codec can't decode byte 0xb6 in position 147: invalid start byte 

Ecco alcuni indizi:

(i) io ho lo stesso errore quando provo a fare funzionare Spyder. Appare anche quando provo a installare altri pacchetti con pip, per esempio i panda.

(ii) Ho la sensazione che questo è legato alla codifica di default dal sys.getdefaultencoding mi da 'ascii'

Nota che funziona bene se lo faccio in un virtualenv.

Sono nuovo di Ubuntu quindi avrei potuto fare qualcosa di sbagliato.

Configurazione: python 2.7.6; pip 7.1.2; ubuntu 14.04.03.

Grazie per il vostro aiuto.

Answer 1

Ho avuto lo stesso problema. Nel mio caso, proviene da un carattere non standard nella descrizione di un modulo.

ho aggiunto un

print f.path

nello script

/usr/local/lib/python2.7/dist-packages/pkg_resources/__init__.py

prima linea 2025, che mi ha permesso di identificare il file che è stato sollevando un errore. Sembra essere il file

/usr/lib/pymodules/python2.7/rpl-1.5.5.egg-info

il cui autore ha un nome contenente il carattere ö, che non può essere letto. Ho semplicemente sostituito "Göran" con "Goran" in questo file e ha risolto il problema.

spero che questo aiuti.