Why don't I get any syntax errors when I execute my Python script with Perl?
Question:
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.
Answers:
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
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.
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