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I tried upgrade pip3 with this command:
sudo pip3 install --upgrade pip
but unfortunately it doesn't work anymore and shows this message:
pip3 --version
message:
Traceback (most recent call last):
File "/usr/local/lib/python3.4/dist-packages/pkg_resources/init.py", line 651, in _build_master ws.require(requires)
File "/usr/local/lib/python3.4/dist-packages/pkg_resources/init.py", line 952, in require needed = self.resolve(parse_requirements(requirements))
File "/usr/local/lib/python3.4/dist-packages/pkg_resources/init.py", line 844, in resolve raise VersionConflict(dist, req).with_context(dependent_req) pkg_resources.VersionConflict: (pip 7.1.2 (/usr/local/lib/python3.4/dist-packages), Requirement.parse('pip==1.5.6'))During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/local/bin/pip3", line 5, in from pkg_resources import load_entry_point
File "/usr/local/lib/python3.4/dist-packages/pkg_resources/init.py", line 3084, in @_call_aside
File "/usr/local/lib/python3.4/dist-packages/pkg_resources/init.py", line 3070, in _call_aside f(*args, **kwargs)
File "/usr/local/lib/python3.4/dist-packages/pkg_resources/init.py", line 3097, in _initialize_master_working_set working_set = WorkingSet._build_master()
File "/usr/local/lib/python3.4/dist-packages/pkg_resources/init.py", line 653, in _build_master return cls._build_from_requirements(requires)
File "/usr/local/lib/python3.4/dist-packages/pkg_resources/init.py", line 666, in _build_from_requirements dists = ws.resolve(reqs, Environment())
File "/usr/local/lib/python3.4/dist-packages/pkg_resources/init.py", line 839, in resolve raise DistributionNotFound(req, requirers) pkg_resources.DistributionNotFound: The 'pip==1.5.6' distribution was not found and is required by the application
How to fix it?
227
Many users question exactly just how to upgrade to the latest version of PIP, given the ever-evolving and fast-moving python ecosystem. The short answer is, pip is just like any other PyPI package and you can upgrade it to newer (or downgrade to older) versions, just as you would upgrade or downgrade any other package.
Step 1: Download the get-pip.py (https://bootstrap.pypa.io/get-pip.py) file and store it in the same directory as python is installed. Step 2: Change the current path of the directory in the command line to the path of the directory where the above file exists. Step 4: Now wait through the installation process.
It seems like you don't use virtualenv and your pythons/paths are probably messed up.
I faced with similar problem with python-2.7 and -3.4 on Ubuntu 14.04. I tried
sudo python -m pip install --upgrade --force-reinstall pip
for 2.7 and it helped. Then I reinstalled pip for python-3.4 via easy_install3.
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