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python Programming Glossary: backslash

What exactly do “u” and “r”string flags in Python, and what are raw string litterals?

http://stackoverflow.com/questions/2081640/what-exactly-do-u-and-rstring-flags-in-python-and-what-are-raw-string-litte

slightly different syntax for a string literal in which a backslash is taken as meaning just a backslash except when it comes right.. literal in which a backslash is taken as meaning just a backslash except when it comes right before a quote that would otherwise.. form feeds and so on. In normal string literals each backslash must be doubled up to avoid being taken as the start of an escape..

In Python, what does preceding a string literal with “r” mean?

http://stackoverflow.com/questions/4780088/in-python-what-does-preceding-a-string-literal-with-r-mean

an 'r' or 'R' prefix is present a character following a backslash is included in the string without change and all backslashes.. backslash is included in the string without change and all backslashes are left in the string. For example the string literal r n.. the string literal r n consists of two characters a backslash and a lowercase 'n' . String quotes can be escaped with a backslash..

Unicode (utf8) reading and writing to files in python

http://stackoverflow.com/questions/491921/unicode-utf8-reading-and-writing-to-files-in-python

open 'f2' .read 'Capit xc3 xa1n n' You can see that the backslash is escaped by a backslash. So you have four bytes in your string.. xc3 xa1n n' You can see that the backslash is escaped by a backslash. So you have four bytes in your string x c and 3 . Edit As others..

Why can't Python's raw string literals end with a single backslash?

http://stackoverflow.com/questions/647769/why-cant-pythons-raw-string-literals-end-with-a-single-backslash

can't Python's raw string literals end with a single backslash Technically any odd number of backslashes as described in the.. end with a single backslash Technically any odd number of backslashes as described in the docs . r' ' File stdin line 1 r' ' ^ SyntaxError.. string literal It seems like the parser could just treat backslashes in raw strings as regular characters isn't that what raw strings..