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I cannot install the pyephem module to my Pi. When I do sudo pip3 install pyephem

I get the following error message:

pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Collecting pyephem
  Could not fetch URL https://pypi.python.org/simple/pyephem/: There was a problem confirming the ssl certificate: Can't connect to HTTPS URL because the SSL module is not available. - skipping
  Could not find a version that satisfies the requirement pyephem (from versions: )
No matching distribution found for pyephem

So I guess the real question is how to get the SSL module on the Pi

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The first problem is that you have the wrong package name, it should be ephem not pyephem. You need to make sure the python3-dev package is installed first. You can do this with the following command:

sudo apt-get install python3-dev

Then install pyephem for Python 3 with the following command:

pip3 install ephem

If you also want to install the version for Python 2.x the required commands are:

sudo apt-get install python-dev
pip3 install ephem

Alternatively you can download and install from a source file:

wget https://pypi.python.org/packages/c3/2c/9e1a815add6c222a0d4bf7c644e095471a934a39bc90c201f9550a8f7f14/ephem-3.7.6.0.tar.gz#md5=405a109f3017251ecd8c2890d850f649

Unpack the archive: 

tar -zxvf ephem-3.7.6.0.tar.gz

enter the ephem-3.7.6.0 directory:

cd ephem-3.7.6.0

and run:

python3 setup.py install

Note: You may need to run the last command as root.

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  • Thanks, but I get the same error message. Funny though, since the Python 2 method works – dbosk Jun 22 '17 at 18:55
  • It works here are you sure you used the python 3 version of the 2 commands? – Steve Robillard Jun 22 '17 at 18:57
  • Try this first sudo apt-get install build-essential libssl-dev libffi-dev python-dev Are you using a virtual environment? – Steve Robillard Jun 22 '17 at 19:02
  • I'm not using a virtual environment. Should I? – dbosk Jun 22 '17 at 19:13
  • Can I manually install if I downloaded the package via browser from the website? – dbosk Jun 22 '17 at 19:13

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