How to load a python script from a raw link (such as Pastebin)?

Question

I have a python script from a Pastebin link such as https://pastebin.com/raw/hz8p3B5Y:

import requests
requests.get('https://api.telegram.org/******/sendMessage?chat_id=******&text=*****  # Send notification to my Telegram

I want to run a local python script that could load the raw Pastebin and execute it.

You may use the [`eval`](https://docs.python.org/2/library/functions.html#eval) function. — A.L, Oct 01 '18 at 09:34

score 1 · Answer 1 · answered Oct 01 '18 at 09:37

1

How about using bash? You could curl then execute the script with Python

curl your_url | sudo python -

curl will print URL's content to stdout
python - will indicate that source come from from stdin

Related to curl and run python script

answered Oct 01 '18 at 09:37

aloisdg

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im using windows btw – Jean Pierre Waked Oct 01 '18 at 09:46
Well... [How to Install and Use the Linux Bash Shell on Windows 10](https://www.howtogeek.com/249966/how-to-install-and-use-the-linux-bash-shell-on-windows-10/) – aloisdg Oct 01 '18 at 11:21
i have 4 system i need to this its a little a pain :( is there any other way ? maybe a python script that download my raw script and save the file then run it as another python file ? – Jean Pierre Waked Oct 01 '18 at 11:42
@JeanPierreWaked why not. it is python all the way down. – aloisdg Oct 01 '18 at 16:27

score 1 · Answer 2 · answered Jun 28 '21 at 10:49

This is a pure Python solution, as compared to the other answer which requires Bash.

First, you can get the raw content of the Pastebin link using requests module's requests.content:

import requests

pastebin_raw_link = 'https://pastebin.com/raw/xxxxxxxx'
response = requests.get(pastebin_raw_link)
source_code = response.content

print(source_code.decode('utf-8'))

That should print out the same contents as the "raw" tab of Pastebin

Next, you can run source_code by:

Option 1: Calling exec on it
```
exec(source_code)
```
This is generally the accepted answer from How do I execute a string containing Python code in Python? It is also generally considered as unsafe, as discussed in posts such as Why should exec() and eval() be avoided? Make sure you really really trust that Pastebin link.
Option 2: Writing it to a tempfile.NamedTemporaryFile() then using importlib to import Python modules directly from a source file:
```
import importlib.util
import sys
import tempfile

with tempfile.NamedTemporaryFile(suffix='.py') as source_code_file:
    # Should print out something like '/var/folders/zb/x14l5gln1b762gjz1bn63b1sxgm4kc/T/tmp3jjzzpwf.py' depending on the OS
    print(source_code_file.name)

    source_code_file.write(source_code)
    source_code_file.flush()

    # From Python docs recipe on "Importing a source file directly"
    module_name = 'can_be_any_valid_python_module_name'
    spec = importlib.util.spec_from_file_location(module_name, source_code_file.name)
    module = importlib.util.module_from_spec(spec)
    sys.modules[module_name] = module
    spec.loader.exec_module(module)
```
This is similar to just manually copying the contents of the Pastebin link, pasting it to some file (ex. 'test.py') in the same directory, and then importing it as import test, which executes the contents of the file.

It is also possible to not use tempfile.NamedTemporaryFile, but then you'll have to manually delete the files you create. The tempfile module already does that for you: "the file is deleted as soon as it is closed".

Also, the nice thing about importing it as a module, is that it acts like any other Python module. Meaning, for example, your Pastebin link declares some variables or methods, then you can do:
```
module.some_variable
module.call_some_method()
```

How to load a python script from a raw link (such as Pastebin)?

2 Answers2

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