The best, and very nearly only, use case for String.raw I can think of is if you’re trying to use something like Steven Levithan’s XRegExp library that accepts text with significant backslashes. Using String.raw lets you write something semantically clear rather than having to think in terms of doubling your backslashes, just like you can … Read more
If your input value is a str string, use codecs.decode() to convert: import codecs codecs.decode(raw_unicode_string, ‘unicode_escape’) If your input value is a bytes object, you can use the bytes.decode() method: raw_byte_string.decode(‘unicode_escape’) Demo: >>> import codecs >>> codecs.decode(‘\\x89\\n’, ‘unicode_escape’) ‘\x89\n’ >>> b’\\x89\\n’.decode(‘unicode_escape’) ‘\x89\n’ Python 2 byte strings can be decoded with the ‘string_escape’ codec: >>> import … Read more
Well … Sort of. The easiest is to just use the fact that adjacent string literals are concatenated by the compiler: const char *text = “This text is pretty long, but will be ” “concatenated into just a single string. ” “The disadvantage is that you have to quote ” “each part, and newlines must … Read more
Use f-strings (introduced in Python 3.6): a = 15 print(fr’Escape is here:\n but still {a}’) # => Escape is here:\n but still 15
To answer your question directly, put r in front of the string. final= path + r’\xulrunner.exe ‘ + path + r’\application.ini’ But a better solution would be os.path.join: final = os.path.join(path, ‘xulrunner.exe’) + ‘ ‘ + \ os.path.join(path, ‘application.ini’) (the backslash there is escaping a newline, but you could put the whole thing on one … Read more
[Update: Adrian McCarthy comments below saying MSVC++ 2017 fixes this] GCC and clang are right, VC++ is wrong. 2.2 Phases of translation [lex.phases]: […] The source file is decomposed into preprocessing tokens (2.5) and sequences of white-space characters (including comments). Preprocessing directives are executed, […] And 2.5 Preprocessing tokens [lex.pptoken] lists string-literals amongst the tokens. … Read more
Raw string literals let you specify an almost arbitrary* delimiter: //choose ### as the delimiter so only )###” ends the string R”###( Some Text)” )###”; *The exact rules are: “any member of the basic source character set except: space, the left parenthesis (, the right parenthesis ), the backslash \, and the control characters representing … Read more
In a regular expression, you need to specify that you’re in multiline mode: >>> import re >>> s = “””cat … dog””” >>> >>> re.match(r’cat\ndog’,s,re.M) <_sre.SRE_Match object at 0xcb7c8> Notice that re translates the \n (raw string) into newline. As you indicated in your comments, you don’t actually need re.M for it to match, but … Read more
Raw string literals are string literals that are designed to make it easier to include nested characters like quotation marks and backslashes that normally have meanings as delimiters and escape sequence starts. They’re useful for, say, encoding text like HTML. For example, contrast “<a href=\”file\”>C:\\Program Files\\</a>” which is a regular string literal, with R”(<a href=”https://stackoverflow.com/questions/56710024/file”>C:\Program … Read more
You’ll need a r before “””, or replace all \ with \\. This is not something you should care about when read the json from somewhere else, but something in the string itself. data = json.loads(r”””{ “entry”:{ “etag”:”W/\”A0UGRK47eCp7I9B9WiRrYU0.\”” } }”””) see here for more information