51 lines
946 B
Markdown
51 lines
946 B
Markdown
This allows to override things.
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Some examples:
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```python
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$ cat target.py
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import sys
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print(sys.executable)
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$ python target.py
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/usr/bin/python
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$ cat patch.py
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from hijack import BinLaden
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patcher = BinLaden()
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patcher.override("sys.executable", "nope")
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patcher.run("target.py")
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$ python patch.py
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nope
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$
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```
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This could be useful to add some functionality or act as a decorator:
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```python
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$ cat target.py
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import requests
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try:
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r = requests.get("fsf.org")
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print(r.status_code, r.reason)
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except Exception as e:
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print(e)
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$ python target.py
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Invalid URL 'fsf.org': No schema supplied. Perhaps you meant http://fsf.org?
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$ cat patch.py
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from hijack import BinLaden
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patcher = BinLaden()
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old_get = patcher.import_("requests").get
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@patcher.override("requests.get")
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def get(url, *a, **kw):
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if not url.startswith("http"):
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url = "https://" + url
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return old_get(url, *a, **kw)
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patcher.run("target.py")
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$ python patch.py
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200 OK
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$
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```
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