Errore Zlib durante l'installazione di Pillow su Mac

Question

Ho cercato di installare il modulo Pillow sul mio Mac (eseguendo una nuova installazione di El Capitan e python 3.5) per un po 'di tempo. Usando pip3 install Pillow, ricevo un errore che dice che non è stato trovato zlib, che quindi fa fallire l'installazione. Ho installato Xcode, quindi teoricamente Zlib è già installato, e quando l'ho installato con brew pip continua a non funzionare (quindi ho disinstallato). Funziona bene fino a qui:

writing Pillow.egg-info/PKG-INFO 
writing dependency_links to Pillow.egg-info/dependency_links.txt 
writing top-level names to Pillow.egg-info/top_level.txt 
warning: manifest_maker: standard file '-c' not found 

reading manifest file 'Pillow.egg-info/SOURCES.txt' 
reading manifest template 'MANIFEST.in' 
writing manifest file 'Pillow.egg-info/SOURCES.txt' 
copying PIL/OleFileIO-README.md -> build/lib.macosx-10.6-intel-3.5/PIL 
running build_ext 
Traceback (most recent call last): 
    File "<string>", line 1, in <module> 
    File "/private/tmp/pip-build-1yfcb2pj/Pillow/setup.py", line 767, in <module> 
    zip_safe=not debug_build(), 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/core.py", line 148, in setup 
    dist.run_commands() 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/dist.py", line 955, in run_commands 
    self.run_command(cmd) 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/dist.py", line 974, in run_command 
    cmd_obj.run() 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/setuptools-18.3.2-py3.5.egg/setuptools/command/install.py", line 61, in run 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/command/install.py", line 539, in run 
    self.run_command('build') 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/cmd.py", line 313, in run_command 
    self.distribution.run_command(command) 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/dist.py", line 974, in run_command 
    cmd_obj.run() 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/command/build.py", line 135, in run 
    self.run_command(cmd_name) 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/cmd.py", line 313, in run_command 
    self.distribution.run_command(command) 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/dist.py", line 974, in run_command 
    cmd_obj.run() 
    File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/command/build_ext.py", line 338, in run 
    self.build_extensions() 
    File "/private/tmp/pip-build-1yfcb2pj/Pillow/setup.py", line 515, in build_extensions 
    % (f, f)) 
ValueError: --enable-zlib requested but zlib not found, aborting. 

---------------------------------------- 
Command  "/Library/Frameworks/Python.framework/Versions/3.5/bin/python3.5 -c "import setuptools, tokenize;__file__='/private/tmp/pip-build-1yfcb2pj/Pillow/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-oxzqi2c0-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/tmp/pip-build-1yfcb2pj/Pillow 

Qualche idea del perché si sbaglia e come posso risolvere il problema?

Answer 1

Esecuzione

$ xcode-select --install 

sembra aver risolto il problema per me.