Describes the cause and action for error messages.
2.7 does not support f prefix
the f"" prefix is not supported (python3.6) ・ Issue #1239 ・ hylang/hy ...
String with 'f' prefix not work with python2.7 by run examples ・ Issue ...
Wrong Python version in PyCharm's inspections - Stack Overflow
Can I import Python's 3.6's formatted string literals (f-strings ...
Setting the project interpreter in PyCharm to Python 3.7 causes ...
python version 3.4 does not support a 'ur' prefix
String with 'f' prefix in python-3.6
The new f-strings in Python 3.6 | Seasoned & Agile
Can you import f-strings in Python 3.5? : Python - Reddit