问题
I want to obfuscate a Python script by using Unicode escape sequences.
For example,
print("Hello World")
in Unicode escape sequences is:
\x70\x72\x69\x6e\x74\x28\x22\x48\x65\x6c\x6c\x6f\x20\x57\x6f\x72\x6c\x64\x22\x29
From my command line, I can achieve this with:
$ python3 -c \x70\x72\x69\x6e\x74\x28\x22\x48\x65\x6c\x6c\x6f\x20\x57\x6f\x72\x6c\x64\x22\x29
Hello World
I've create a file and put the "Hello World" Unicode escape sequence in it as the source code.
But when I run it, I get:
$ python3 sample.py
SyntaxError: unexpected character after line continuation character
How can I use Unicode escape sequences in my source code.
回答1:
You can use a PEP 263 header, which tells Python which encoding the source code is written in.
The format is:
# coding=<encoding name>
By using the unicode_escape codec (selected from https://docs.python.org/3/library/codecs.html), Python will unescape your strings first.
sample.py
# coding=unicode_escape
\x70\x72\x69\x6e\x74\x28\x22\x48\x65\x6c\x6c\x6f\x20\x57\x6f\x72\x6c\x64\x22\x29
Result:
$ python3 sample.py
Hello World
来源：https://stackoverflow.com/questions/38030487/obfuscate-a-python-script-in-unicode-escape-sequences