pip installation error command 'python setup.py egg_info' failed with error code 1

Question

I am trying to install monkeytype on Ubuntu terminal using the command:

pip install monkeytype 

but I'm getting an error saying:

Command "python setup.py egg_info" failed with error code 1 

Here is the full log:

bash-4.3$ pip install monkeytype DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. Collecting monkeytype Using cached https://files.pythonhosted.org/packages/5f/59/43bc6e44d69bd268e545fdfacdd6866362aca57ac894bbc3177b5455c06a/MonkeyType-18.2.0.tar.gz Collecting retype (from monkeytype) Using cached https://files.pythonhosted.org/packages/6e/da/ca9f5560f051d2ed79a52de1170903e3ff8ad011cff56c65abfcff38d372/retype-17.12.0.tar.gz ERROR: Complete output from command python setup.py egg_info: ERROR: Traceback (most recent call last): File "<string>", line 1, in <module> File "/tmp/pip-install-mCIobj/retype/setup.py", line 14, in <module> assert sys.version_info >= (3, 6, 0), "retype requires Python 3.6+" AssertionError: retype requires Python 3.6+ ---------------------------------------- ERROR: Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-install-mCIobj/retype/ 

Answer 1

With pip install, the real error is always hidden a little further up the log because pip runs the install routine of your packages.

In your case check for ERROR: Traceback, which says 'retype requires Python 3.6+'.

So, the installed package requires Python 3.6 but from an earlier error message we can deduce your pip runs python 2.7 (look for DEPRECATION: Python 2.7 )

So, fix the error by running the command with pip3 or python3 pip.

To verify which version of python is used, call pip -V.

Answer 2

sudo pip3 install --upgrade setuptools 

copy it and paste it in terminal.

Answer 3

Check the error list searching a line like 'WARNING: The wheel package is not available.' or something similar. Installing separately each missing package resolve the problems.