Jul 8, 2010 · The rule of thumb for repr is that if it makes sense to return Python code that could be evaluated to produce the same object, do that, just like str, frozenset, and most other …

Feb 3, 2012 · You're confusing the variable name with the string of the animal name: In here: cat = 7 cat is the variable, 7 its value. In: cat = 'cat' cat is still the variable and 'cat' is the string with …

This is obviously clunkier than just calling .format on the string; the motivation is to allow users to subclass Formatter to define a different syntax for the template string. All of the above …

Even in the very rare cases where you do have a good reason to dynamically create a variable, this is not the way to do it; just use setattr. And even when setattr is inappropriate for whatever …

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 …

The reason it doesn't work, at least on CPython, is that CPython allocates a fixed size array for locals, and the size of said array is determined when the function is defined, not when its run, …

Jul 19, 2012 · I have a variable with a string assigned to it and I want to define a new variable based on that string. foo = "bar" foo = "something else" # What I …

Aug 25, 2013 · def getVariableName(variable, globalVariables=globals().copy()): """ Get Variable Name as String by comparing its ID to globals() Variables' IDs args: variable(var): Variable to …

Oct 7, 2009 · The method globals().items() returns a list of tuples; in each tuple the first item is the variable name (as a string) and the second is the variable value. My variablename() function …

Apr 12, 2012 · You can use Python 3.6's f-strings for variables inside multi-line or lengthy single-line strings. You can manually specify newline characters using \n.