As the following figure shows, vectorized concatenation (via +) is fastest if the strings being concatenated are short such as in the OP. However, if the strings are long (e.g. each cell …

Sep 17, 2012 · @Wouter, it will not. On the one hand, only lists of strings can be joined; so list.join would be inappropriate for an arbitrary list. On the other, the argument of str.join can be any …

Dec 14, 2010 · When you concatenate strings using the + operator, Python will call the __add__ method on the string on the left side passing the right side string as a parameter. – Addie …

The OP asked for Python 2.4 but about version 2.7, Hatem Nassrat has tested (July 2013) three concatenation techniques where + is faster when concatenating less than 15 strings but he …

I want to apply some sort of concatenation of the strings in a column using groupby. This is my code so far: import pandas as pd from io import StringIO data = StringIO(""" …

The speed can be contrasted with the fastest method for Python 2, which is + concatenation on my computer; and that takes 0.203 µs with 8-bit strings, and 0.259 µs if the strings are all …

To anyone else stumbling across this question, you can use \ to concatenate a Path object and str.. Use path.Path for paths compatible with both Unix and Windows (you can use it the same …

Aug 18, 2012 · To print strings and numbers in Python, is there any other way than doing something like: first = 10 second = 20 print "First number is %(first)d and second number is …

Dec 16, 2015 · Python 3: Formatted Strings. As of Python 3.6 you can use so-called "formatted strings" (or "f strings") to easily insert variables into your strings. Just add an f in front of the …

Mar 14, 2016 · Concatenating strings in python without spaces [duplicate] Ask Question Asked 9 years, 2 months ago.