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Here's a simple crude solution:

$ cat a.py
a = 3.14
a *= 2
$ python <(cat a.py && echo '\nprint(a)') 
6.28

There are various ways this might not work, but the constraints of your situation are not clear.

Here's a simple crude solution:

$ cat a.py
a = 3.14
a *= 2
$ python <(cat a.py && echo '\nprint(a)') 
6.28

There are various ways this might not work, but the constraints of your situation are not clear.

The \n is there to prevent a syntax error in the case that a.py does not end in a newline.

Here's a simple crude solution:

$ cat a.py
a = 3.14
a *= 2
$ python <(cat a.py && echo 'print(a)') 
6.28

There are various ways this might not work, but the constraints of your situation are not clear.

Here's a simple crude solution:

$ cat a.py
a = 3.14
a *= 2
$ python <(cat a.py && echo '\nprint(a)') 
6.28

There are various ways this might not work, but the constraints of your situation are not clear.

Here's a simple crude solution:

$ cat a.py
a = 3.14
a *= 2
$ python <(cat a.py && echo '\nprint(a)') 
6.28

There are various ways this might not work, but the constraints of your situation are not clear.

Here's a simple crude solution:

$ cat a.py
a = 3.14
a *= 2
$ python <(cat a.py && echo 'print(a)') 
6.28

There are various ways this might not work, but the constraints of your situation are not clear.