Recently I had my conda environment raising a long error report when calling
One of the relevant error message refers to an unknown variable python_implementation.
raise SyntaxError('unknown variable: %s' % expr)
SyntaxError: unknown variable: python_implementation
My colleagues had no problems. From a fresh conda environment, no problem either. The fact is that some tools overwrote or deleted a package called xopen.
This fixed the problem for me:
conda install xopen