Python how to replace backslash with re.sub()

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You need a quadruple backslash:

newstr = re.sub(mystr1 + "\\\\", "", myfile)

Reason:

  • Regex to match a single backslash: \\
  • String to describe this regex: "\\\\".

Or you can use a raw string, so you only need a double backslash: r"\\"

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