Not able to install Python packages SSL TLSV1 ALERT PROTOCOL VERSION

Question

I am trying to install a Python library using pip  getting an SSL error     projects base   pre-master    pip install xdict  Collecting xdict   Could not fetch URL https   pypi python org simple xdict   There was a problem confirming the ssl certificate   SSL  TLSV1 ALERT PROTOCOL VERSION  tlsv1 alert protocol version   ssl c 590  - skipping   Could not find a version that satisfies the requirement xdict  from versions    No matching distribution found for xdict   pip version  pip 9 0 1  How do I fix this error

User · Answer

Check your TLS version   python2 -c  import urllib2 json  print json loads urllib2 urlopen  https   www howsmyssl com a check   read     tls version       If your TLS version is less than 1 2 you have to upgrade it since the PyPI repository is on a brownout period of deprecating early TLS   Source - Time To Upgrade Your Python  TLS v1 2 Will Soon Be Mandatory  You can upgrade the TLS version using the following command   sudo apt-get update  amp  amp  sudo apt-get install openssl libssl-dev   This should fix your problem  Good luck   EDIT   You can download packages using your own private python package repository regardless of TLS version   Private Python Package Repository

User · Answer

I also hit this problem on my windows10 and tried all the answers but didn t solve my problem       C  python367 Scripts pip install Flask      Collecting Flask   Could not find a version that satisfies the   requirement Flask  from versions    No matching distribution found for   Flask   After that  I find the pip configuration file had been modified  So  I set the pip ini as the original default configuration  re-run the pip command and it works for me   In summary of the solution of mine    Check the pip ini  usually under the path C  ProgramData pip  had been modified  If yes in step1  try to reset it to a default configuration

User · Answer

This worked for me  Add sudo before python  curl https   bootstrap pypa io get-pip py  sudo python

User · Answer

Anupam s solution worked for me  However  I had to use sudo and specify the exact location of my virtual Python environment   curl https   bootstrap pypa io get-pip py   sudo  Users  your user name   path to python  bin python

User · Answer

I ran into this problem as well  The underlying problem is that the ssl library in Python 2 7 versions  lt  2 7 9 is no longer compatible with the pip mechanism   If you are running on Windows  and you  like us  can t easily upgrade from an incompatible version of 2 7  FWIW  I found that if you copy the following files from another install of the latest version of Python  e g  Python 2 7 15  on another machine to your installation       Lib ssl py     libs  ssl lib     DLLs  ssl dll   it will effectively  upgrade  your SSL layer to one which is supported  we were then be able to use pip again  even to upgrade pip

User · Answer

This worked for me  I installed latest version of pip and then installed the library  ciscoconfparse    Upgrading pip   curl https   bootstrap pypa io get-pip py   sudo  Users  your user name   path to python  bin python

User · Answer

But if the curl command itself fails with error  or  tlsv1 alert protocol version  persists even after upgrading pip  it means your operating system s underlying OpenSSL library version lt 1 0 1 or Python version lt 2 7 9  or  lt 3 4 in Python 3  do not support the newer TLS 1 2 protocol that pip needs to connect to PyPI since about a year ago  You can easily check it in Python interpreter      gt  gt  gt  import ssl  gt  gt  gt  ssl OPENSSL VERSION  OpenSSL 0 9 8o 01 Jun 2010   gt  gt  gt  ssl PROTOCOL TLSv1 2  AttributeError   module  object has no attribute  PROTOCOL TLSv1 2    The AttributeError  instead of expected  5   means your Python stdlib ssl module  compiled against old openssl lib  is lacking support for the TLSv1 2 protocol  even if the openssl library can or could be updated later    Fortunately  it can be solved without upgrading Python  and the whole system   by manually installing extra Python packages -- the detailed step-by-step guide is available here on Stackoverflow      Note  curl and pip and wget all depend on the same OpenSSL lib for establishing SSL connections  use   openssl version command   libcurl supports TLS 1 2 since curl version 7 34  but older curl versions should be able to connect if you had OpenSSL version 1 0 2  or later              P S    For Python 3  please use python3 and pip3 everywhere  unless you are in a venv virtualenv   including the curl command from above      curl https   bootstrap pypa io get-pip py   python3 --user

User · Answer

myenv   python 2 7 14  pip 9 0 1  mac osx 10 9 4    mysolution    download get-pip py manually from https   packaging python org tutorials installing-packages  run python get-pip py     refs   https   github com pypa warehouse issues 3293 issuecomment-378468534  https   packaging python org tutorials installing-packages       Securely Download get-pip py  1       Run python get-pip py   2  This will install or upgrade pip  Additionally  it will install setuptools and wheel if they   re not installed already       Ensure pip  setuptools  and wheel are up to date      While pip alone is sufficient to install from pre-built binary archives  up to date copies of the setuptools and wheel projects are useful to ensure you can also install from source archives       python -m pip install --upgrade pip setuptools wheel

User · Answer

To upgrade the local version I used a slight variant   curl https   bootstrap pypa io get-pip py   python - --user   This problem arises if you keep your pip and packages under your home directory as described in this gist

User · Answer

Upgrade pip as follows   curl https   bootstrap pypa io get-pip py   python   Note  You may need to use sudo python above if not in a virtual environment    Note that upgrading pip using pip i e pip install --upgrade pip will also not upgrade it correctly  It s just a chicken-and-egg issue  pip won t work unless using TLS    1 2    As mentioned in this detailed answer  this is due to the recent TLS deprecation for pip  Python org sites have stopped support for TLS versions 1 0 and 1 1   From the Python status page      Completed - The rolling brownouts are finished  and TLSv1 0 and   TLSv1 1 have been disabled  Apr 11  15 37 UTC    For PyCharm  virtualenv  users    Run virtual environment with shell   replace    venv bin activate  to your own path   source   venv bin activate  Run upgrade  curl https   bootstrap pypa io get-pip py   python  Restart your PyCharm instance  and check your Python interpreter in Preference

User · Answer

For Python2 WIN10 Users   1 Uninstall python thoroughly  include all folders   2 Fetch and install the lastest python-2 7 msi  ver 2 7 15   3 After step 2 you may find pip had been installed too   4 Now  if your system env haven t been changed you can use pip to install packages now The  tlsv1 alert protocol version  will not appear

User · Answer

The following solution worked for me    brew install python2   It also upgraded pip to version 1 10 1

User · Answer

I tried all existing fixes and not working for me  I re-install python 2 7  will also install pip  by downloading  pkg at https   www python org downloads mac-osx   works for me after installation downloaded pkg

User · Answer

The answers of installing pip via    curl https   bootstrap pypa io get-pip py  sudo python or  curl https   bootstrap pypa io get-pip py   python    did not work for me as I kept on getting the error    Could not fetch URL https   pypi org simple pip   There was a problem confirming the ssl certificate  HTTPSConnectionPool host  pypi org   port 443   Max retries exceeded with url   simple pip   Caused by SSLError  Can t connect to HTTPS URL because the SSL module is not available      - skipping ERROR  Could not find a version that satisfies the requirement pip  from versions  none  ERROR  No matching distribution found for pip   I had to install pip manually via    Go the pip distribution website Download the tar gz version Unpack the file locally and cd into the directory run python setup py install

User · Answer

Or simply the required library just isn t in the repo  I m Python newbie and all advices about upgrading pip finally shown as misleading  I had just to look into https   pypi org    finding the library  airflow in my case  stopped at some old version  after which it was renamed  Yes  also that silly solution is also possible  -

User · Answer

Following  Anupam s answer on OS X resulted in the following error for me  regardless of permissions I ran it with      Could not install packages due to an EnvironmentError   Errno 13  Permission denied        What eventually worked was to download a newer pip package  9 0 3  from PyPI directly from my browser - https   pypi org simple pip   extract the contents  and then pip install the package locally   pip install   pip-9 0 3    This fixed my  SSL  TLSV1 ALERT PROTOCOL VERSION  errors

User · Answer

For all the python3 and pip3 users out there   curl https   bootstrap pypa io get-pip py   sudo python3   and then assume you want to install pandas  pip3 install pandas --user

[python] Not able to install Python packages [SSL: TLSV1_ALERT_PROTOCOL_VERSION]

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