bug^君 2015-04-10 14:19 采纳率: 25%
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为什么在使用 Perl 执行 Python 脚本时没有遇到任何语法错误?

I just wrote some testing python code into test.py, and I'm launching it as follows:

perl test.py

After a while I realized my mistake. I say "after a while", because the Python code gets actually correctly executed, as if in Python interpreter!

Why is my Perl interpreting my Python? test.py looks like this:

#!/usr/bin/python

...Python code here...

Interestingly, if I do the opposite (i.e. call python something.pl) I get a good deal of syntax errors.

转载于:https://stackoverflow.com/questions/29563832/why-dont-i-get-any-syntax-errors-when-i-execute-my-python-script-with-perl

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  • 旧行李 2015-04-10 14:25
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    From perlrun,

    If the #! line does not contain the word "perl" nor the word "indir" the program named after the #! is executed instead of the Perl interpreter. This is slightly bizarre, but it helps people on machines that don't do #! , because they can tell a program that their SHELL is /usr/bin/perl, and Perl will then dispatch the program to the correct interpreter for them.

    For example,

    $ cat a
    #!/bin/cat
    meow
    
    $ perl a
    #!/bin/cat
    meow
    
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