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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.
498
You can easily capture STDERR redirecting it to STDOUT: my $ret = `/usr/bin/pdf2txt.py arg1 arg2 2>&1`; If you need to capture the exit status, then you can use: my $ret = system("/usr/bin/pdf2txt.py arg1 arg2");
Syntax errors are produced by Python when it is translating the source code into byte code. They usually indicate that there is something wrong with the syntax of the program. Example: Omitting the colon at the end of a def statement yields the somewhat redundant message SyntaxError: invalid syntax.
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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