Dec 14, 2010 · If you only have one reference to a string and you concatenate another string to the end, CPython now special cases this and tries to extend the string in place. The end result …

Nov 17, 2013 · The f-string version is almost as fast as @RomanPekar's solution (python 3.6.4): df = pd.DataFrame({'col':['a', 0]*200000}) %timeit df['col'].apply(lambda x: f"str{x}") 117 ms ± …

If you are using python 3.6 and newer then you can use f-strings to do the task like this. print(f"I have {card.price}") just include f in front of your string and add the variable inside curly braces …

Sep 17, 2012 · The result of join is always a string, but the object to be joined can be of many types (generators, list, tuples, etc)..join is faster because it allocates memory only once. Better …

The simplest thing is to use python's triple quotes (note the three single quotes) stringtowrite = '''abcd || efgh|| iklk''' any string literal with triple quotes will continue on a following line. You can …

For ordinary functions and methods, like input, or the savefig method of Matplotlib plots, we need to prepare a string ourselves. Concatenation. Python supports using + between two strings, …

See Format String Syntax for a description of the various formatting options that can be specified in format strings. This method of string formatting is the new standard in Python 3.0, and …

Oct 15, 2020 · Running the following experiment the pythonic way: [s + mystring for s in mylist] seems to be ~35% faster than the obvious use of a for loop like this:

Apr 8, 2012 · Strings are immutable so you can't insert characters into an existing string. You have to create a new string. You can use string concatenation to do what you want: yourstring …

Nov 10, 2018 · Python add string value between variables conditonally. 0. Add a character in a string inside a column ...