Installing hashLib gives SyntaxError: Missing parentheses in call to 'print'

问题

I needed a simple hash function for passwords and thought I could use hashlib. PyCharm suggested to install it by running pip install hashLib.

But now PyCharm is complaining about a syntax error in the library:

Collecting hashLib
Using cached https://files.pythonhosted.org/packages/74/bb/9003d081345e9f0451884146e9ea2cff6e4cc4deac9ffd4a9ee98b318a49/hashlib-20081119.zip
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/private/var/folders/6_/8g1vyy5n1t1859x2d30ssk480000gn/T/pycharm-packaging/hashLib/setup.py", line 68
    print "unknown OS, please update setup.py"
          ^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print("unknown OS, please update setup.py")?

----------------------------------------

Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/6_/8g1vyy5n1t1859x2d30ssk480000gn/T/pycharm-packaging/hashLib/

It suggests that it may be a problem related to the Python version I am using (I tried with Python 2.7 and Python 3.8, but none of them worked).

Make sure that you use a version of Python supported by this package. Currently you are using Python 3.8.

回答1:

hashlib is in the standard library now. That means you don't need to install it, it's there already with your Python installation.

The one you tried to install from PyPI is for very old versions of Python (<= 2.4).

来源：https://stackoverflow.com/questions/59044602/installing-hashlib-gives-syntaxerror-missing-parentheses-in-call-to-print