折腾：
【已解决】Mac中把Python3的pip重新换成Python2的pip
期间，去试试easy_install，结果有问题：
<code>➜ robotDemo which easy_install
/usr/bin/easy_install
➜ robotDemo easy_install --version
Traceback (most recent call last):
File "/usr/bin/easy_install-2.7", line 11, in <module>
load_entry_point('setuptools==18.5', 'console_scripts', 'easy_install')()
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 480, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 2693, in load_entry_point
return ep.load()
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 2324, in load
return self.resolve()
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 2330, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py", line 46, in <module>
from setuptools.archive_util import unpack_archive
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/archive_util.py", line 15, in <module>
from pkg_resources import ensure_directory, ContextualZipFile
ImportError: cannot import name ContextualZipFile
➜ robotDemo easy_install --help
Traceback (most recent call last):
File "/usr/bin/easy_install-2.7", line 11, in <module>
load_entry_point('setuptools==18.5', 'console_scripts', 'easy_install')()
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 480, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 2693, in load_entry_point
return ep.load()
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 2324, in load
return self.resolve()
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 2330, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py", line 46, in <module>
from setuptools.archive_util import unpack_archive
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/archive_util.py", line 15, in <module>
from pkg_resources import ensure_directory, ContextualZipFile
ImportError: cannot import name ContextualZipFile
➜ robotDemo easy_install-2.7
Traceback (most recent call last):
File "/usr/bin/easy_install-2.7", line 11, in <module>
load_entry_point('setuptools==18.5', 'console_scripts', 'easy_install')()
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 480, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 2693, in load_entry_point
return ep.load()
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 2324, in load
return self.resolve()
File "/Users/crifan/Library/Python/2.7/lib/python/site-packages/pkg_resources/__init__.py", line 2330, in resolve
module = __import__(self.module_name, fromlist=['__name__'], level=0)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/command/easy_install.py", line 46, in <module>
from setuptools.archive_util import unpack_archive
File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/setuptools/archive_util.py", line 15, in <module>
from pkg_resources import ensure_directory, ContextualZipFile
ImportError: cannot import name ContextualZipFile
➜ robotDemo
</code>3的没问题：
<code>➜ robotDemo easy_install-3.6 error: No urls, filenames, or requirements specified (see --help) ➜ robotDemo easy_install-3.6 --help Global options: --verbose (-v) run verbosely (default) --quiet (-q) run quietly (turns verbosity off) --dry-run (-n) don't actually do anything --help (-h) show detailed help message --no-user-cfg ignore pydistutils.cfg in your home directory Options for 'easy_install' command: --prefix installation prefix --zip-ok (-z) install package as a zipfile --multi-version (-m) make apps have to require() a version --upgrade (-U) force upgrade (searches PyPI for latest versions) --install-dir (-d) install package to DIR --script-dir (-s) install scripts to DIR --exclude-scripts (-x) Don't install scripts --always-copy (-a) Copy all needed packages to install dir --index-url (-i) base URL of Python Package Index --find-links (-f) additional URL(s) to search for packages --build-directory (-b) download/extract/build in DIR; keep the results --optimize (-O) also compile with optimization: -O1 for "python - O", -O2 for "python -OO", and -O0 to disable [default: -O0] --record filename in which to record list of installed files --always-unzip (-Z) don't install as a zipfile, no matter what --site-dirs (-S) list of directories where .pth files work --editable (-e) Install specified packages in editable form --no-deps (-N) don't install dependencies --allow-hosts (-H) pattern(s) that hostnames must match --local-snapshots-ok (-l) allow building eggs from local checkouts --version print version information and exit --no-find-links Don't load find-links defined in packages being installed --user install in user site-package '/Users/crifan/Library/Python/3.6/lib/python/site -packages' usage: easy_install-3.6 [options] requirement_or_url ... or: easy_install-3.6 --help ➜ robotDemo </code>
然后发现：
<code>➜ robotDemo brew install easy_install Error: No available formula with the name "easy_install" ==> Searching for a previously deleted formula (in the last month)... Warning: homebrew/core is shallow clone. To get complete history run: git -C "$(brew --repo homebrew/core)" fetch --unshallow Error: No previously deleted formula found. ==> Searching for similarly named formulae... ==> Searching local taps... Error: No similarly named formulae found. ==> Searching taps... ==> Searching taps on GitHub... Error: No formulae found in taps. </code>
mac easy_install ImportError cannot import name ContextualZipFile
ImportError (ContextualZipFile) on setuptools 8.0.2 · Issue #299 · pypa/setuptools
Import error on ContextualZipFile inside pkg_resources.py · Issue #252 · pypa/setuptools
pip – Upgrading setuptools on Mountain Lion following Python upgrade – Stack Overflow
Installation — pip 10.0.1 documentation
Installation — pip 10.0.1 documentation
ImportError: cannot import name ContextualVersionConflict – SiCKRAGE Forums
安装Caffe的Python wrapper时出现问题的解决方法 – CSDN博客
还是去试试，估计是没关系的python3的pip：
<code>➜ robotDemo python3 -m pip install -U --force-reinstall pip Collecting pip Downloading https://files.pythonhosted.org/packages/0f/74/ecd13431bcc456ed390b44c8a6e917c1820365cbebcb6a8974d1cd045ab4/pip-10.0.1-py2.py3-none-any.whl (1.3MB) 100% |████████████████████████████████| 1.3MB 3.2MB/s Installing collected packages: pip Found existing installation: pip 10.0.0 Uninstalling pip-10.0.0: Successfully uninstalled pip-10.0.0 Successfully installed pip-10.0.1 </code>
再去，问题依旧：
<code>➜ robotDemo python -m pip install -U --force-reinstall pip /usr/bin/python: No module named pip </code>
按照官方的去，结果出错：
<code>➜ robotDemo curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 1603k 100 1603k 0 0 592k 0 0:00:02 0:00:02 --:--:-- 592k ➜ robotDemo python get-pip.py Collecting pip Using cached https://files.pythonhosted.org/packages/0f/74/ecd13431bcc456ed390b44c8a6e917c1820365cbebcb6a8974d1cd045ab4/pip-10.0.1-py2.py3-none-any.whl Collecting wheel Downloading https://files.pythonhosted.org/packages/1b/d2/22cde5ea9af055f81814f9f2545f5ed8a053eb749c08d186b369959189a8/wheel-0.31.0-py2.py3-none-any.whl (41kB) 100% |████████████████████████████████| 51kB 135kB/s pipenv 11.10.0 requires certifi, which is not installed. pipenv 11.10.0 requires requests[security], which is not installed. pipenv 11.10.0 requires virtualenv, which is not installed. matplotlib 1.3.1 requires nose, which is not installed. matplotlib 1.3.1 requires tornado, which is not installed. Installing collected packages: pip, wheel Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/pip-10.0.1.dist-info' Consider using the `--user` option or check the permissions. </code>
搜：
Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: /Library/Python/2.7/site-packages/pip-10.0.1.dist-info
<code>➜ bin /Users/crifan/Library/Python/2.7/bin/easy_install --version
zsh: /Users/crifan/Library/Python/2.7/bin/easy_install: bad interpreter: /usr/local/opt/python/bin/python2.7: no such file or directory
➜ bin where easy_install
/usr/bin/easy_install
➜ bin ll /usr/bin/easy_install*
-rwxr-xr-x 2 root wheel 925B 7 16 2017 /usr/bin/easy_install
-rwxr-xr-x 1 root wheel 458B 7 16 2017 /usr/bin/easy_install-2.7
➜ bin cat /usr/bin/easy_install
#!/usr/bin/python
import sys, os
import glob, re
partA = """\
python version %d.%d.%d can't run %s. Try the alternative(s):
"""
partB = """
Run "man python" for more information about multiple version support in
Mac OS X.
"""
sys.stderr.write(partA % (sys.version_info[:3] + (sys.argv[0],)))
dir, base = os.path.split(sys.argv[0])
specialcase = (base == 'python-config')
if specialcase:
pat = "python*-config"
else:
pat = base + '*'
g = glob.glob(os.path.join(dir, pat))
# match a single digit, dot and possibly multiple digits, because we might
# have 2to32.6, where the program is 2to3 and the version is 2.6.
vpat = re.compile("\d\.\d+")
n = 0
for i in g:
vers = vpat.search(i)
if vers is None:
continue
sys.stderr.write("%s (uses python %s)\n" % (i, i[vers.start():vers.end()]))
n = 1
if n == 0:
sys.stderr.write("(Error: no alternatives found)\n")
sys.stderr.write(partB)
sys.exit(1)
➜ bin
</code>mac easy_install reinstall
macos – Why is Python easy_install not working on my Mac? – Stack Overflow
发现有3.6的版本，还是去删除吧：
<code>➜ robotDemo /usr/local/bin/easy_install* error: No urls, filenames, or requirements specified (see --help) ➜ robotDemo ll /usr/local/bin/easy_install* lrwxr-xr-x 1 crifan admin 45B 4 17 10:52 /usr/local/bin/easy_install-3.6 -> ../Cellar/python/3.6.4_4/bin/easy_install-3.6 ➜ robotDemo /usr/local/bin/easy_install-3.6 --version setuptools 38.5.2 from /usr/local/lib/python3.6/site-packages (Python 3.6) ➜ robotDemo /usr/local/bin/Cellar/python/3.6.4_4/bin/easy_install-3.6 --version zsh: no such file or directory: /usr/local/bin/Cellar/python/3.6.4_4/bin/easy_install-3.6 ➜ robotDemo /usr/local/Cellar/python/3.6.4_4/bin/easy_install-3.6 --version setuptools 38.5.2 from /usr/local/lib/python3.6/site-packages (Python 3.6) </code>
暂时不去管了。
等用到了Python2的easy_install再说。
转载请注明：在路上 » 【未解决】Mac中Python2的easy_install的问题：ImportError cannot import name ContextualZipFile