Unsupported Protocol While Download Tar.Gz Package

Unsupported protocol while download tar.gz package

In my ExternalProject_Add(), I have use GIT_REPOSITORY insted of URL option.

#URL https://github.com/keplerproject/luacov/archive/v0.7.tar.gz
GIT_REPOSITORY https://github.com/keplerproject/luacov.git

And luacov download and build successfully.

For any https protocol use DOWNLOAD_COMMAND option of ExternalProject_Add() function.

DOWNLOAD_COMMAND wget https://github.com/keplerproject/luacov/archive/v0.7.tar.gz

and its working as expected.

Thanks.

Protocol https not supported or disabled in libcurl - how do I check current version of libcurl

You can check the version of curl by running:

curl --version

If curl is not working for you, you might want to try wget instead. Wget is commonly used for downloading files from web servers, and it has a similar feature set to curl.

wget https://example.com/example.tar.gz

Not able to install Python packages [SSL: TLSV1_ALERT_PROTOCOL_VERSION]

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:

1. Run virtual environment with shell. (replace "./venv/bin/activate" to your own path)

   source ./venv/bin/activate
   

2. Run upgrade

   curl https://bootstrap.pypa.io/get-pip.py | python
   

3. Restart your PyCharm instance, and check your Python interpreter in Preference.

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