Anomalous backslash detected PY-W0073
Bug risk
Major
a year ago
—
a year old
Anomalous backslash in string: '\/'. String constant might be missing an r prefix.
107 return
108
109 urlscheme = re.search(
110 "sileo:\/\/package\/([a-zA-Z0-9]+(\.[a-zA-Z0-9]+)+(\.[a-zA-Z0-9]+)+)", message.content)111 if urlscheme is None:
112 return
113Anomalous backslash in string: '\/'. String constant might be missing an r prefix.
107 return
108
109 urlscheme = re.search(
110 "sileo:\/\/package\/([a-zA-Z0-9]+(\.[a-zA-Z0-9]+)+(\.[a-zA-Z0-9]+)+)", message.content)111 if urlscheme is None:
112 return
113Anomalous backslash in string: '\.'. String constant might be missing an r prefix.
107 return
108
109 urlscheme = re.search(
110 "sileo:\/\/package\/([a-zA-Z0-9]+(\.[a-zA-Z0-9]+)+(\.[a-zA-Z0-9]+)+)", message.content)111 if urlscheme is None:
112 return
113Anomalous backslash in string: '\.'. String constant might be missing an r prefix.
107 return
108
109 urlscheme = re.search(
110 "sileo:\/\/package\/([a-zA-Z0-9]+(\.[a-zA-Z0-9]+)+(\.[a-zA-Z0-9]+)+)", message.content)111 if urlscheme is None:
112 return
113Anomalous backslash in string: '\/'. String constant might be missing an r prefix.
107 return
108
109 urlscheme = re.search(
110 "sileo:\/\/package\/([a-zA-Z0-9]+(\.[a-zA-Z0-9]+)+(\.[a-zA-Z0-9]+)+)", message.content)111 if urlscheme is None:
112 return
113
Description
Backslash is present in the literal string but is not a valid escape sequence. If it is intended to be an escape sequence, use the correct escape characters. If it is intended to be a literal backslash, it can either be replaced with with an escaped backslash \\, or you can add an r prefix to make it a "raw" string.
Bad practice
filepath = "C:\myfiles\run.py"
Recommended
filepath = "C:\\myfiles\\run.py" # use `\\` to render one backslash
filepath = r"C:\myfiles\run.py" # use the `r` prefix to avoid unnecessary escapes