sys.stdin.readlines() hangs Python script

Question

Everytime I\'m executing my Python script, it appears to hang on this line:

lines = sys.stdin.readlines()

What should I do to fix/avoid thi

Answer 1

If you're running the program in an interactive session, then this line causes Python to read from standard input (i. e. your keyboard) until you send the EOF character (Ctrl-D (Unix/Mac) or Ctrl-Z (Windows)).

>>> import sys
>>> a = sys.stdin.readlines()
Test
Test2
^Z
>>> a
['Test\n', 'Test2\n']