How to run multiple strings as source code?

Question

I'm solving some text2code problem for question-answering system and in the process I had the following question: Is it possible to run strings of code as complete code by passing arguments from the original environment? For example,I have these piece of code in str:

import module model=module(data,*args)

And from base environment I want to do:

#for example args=[**some args**] data=pd.DataFrame() exec(string)(data=data,*args)

For obvious reasons, transferring the data object using string.format() will not work. Standard unpacking using * does not work either, although, perhaps, I am doing something wrong.

Does this answer your question? How do I execute a string containing Python code in Python? — jkr
– jkr, Commented Mar 31, 2021 at 13:16

politinsa · Accepted Answer · 2021-03-31 13:11:04Z

exec can take 3 args: the string, globals var and locals var.

So you can do something like:

exec(string, globals(), locals())

to pass all variable. It might be faster to only pass a subset of it:

exec(string, None, {k: locals()[k] for k in ('data', 'args')})`

For single expression you can use eval:

>>> i = 50 >>> eval("print(i)") 50 >>>

How do I execute a string containing Python code in Python?

eval is only suitable for executing single expressions, it is not capable of executing a string as full source code:(
Yep,it works.It was only necessary to indicate the names of the arguments in the string itself, for some reason I did not think of this right away.Thanks!

Collectives™ on Stack Overflow

How to run multiple strings as source code?

1 Answer 1

2 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Linked

Related