However, they get stuck on how to dynamically create those variable names, and may try something like this: for i in range(10): my_calculator.('button_%d' % i) = tkinter.Button(root, …

Sep 18, 2021 · This means that every variable defined on globals() will go on the module namespace and stay there until the end of the program. Most of the times when one says …

Jun 13, 2012 · You don't create variables to hold any particular type. You don't "create" variables at all. You give names to objects. Second point: Python follows a very simple rule when it …

# create an empty list to store the dataframes dataframes = [] # iterate over the list of categorical features for feature in categoricalFeatures: # create a dataframe with dummy variables for the …

Jul 30, 2021 · Python objects are not that simply reflected into JSON, as JSON is quite a limited format with only a few data types. There are a lot of questions here on SO already that cover …

Oct 3, 2009 · A couple of contributions suggested that arrays in python are represented by lists. This is incorrect. Python has an independent implementation of array() in the standard library …

os.environ behaves like a python dictionary, so all the common dictionary operations can be performed. In addition to the get and set operations mentioned in the other answers, we can …

Jul 6, 2012 · I'm just learning to program and am learning Python as my first language. As an exercise I'm trying to write an address book program. New contact are created by the user …

Nov 24, 2012 · I came here to find a way to prevent the behavior in the third scenario (object to be copied is mutable). In case others wanted the same info, what I eventually found is that other …

Jul 11, 2016 · def create_global_variable(): global global_variable # must declare it to be a global first # modifications are thus reflected on the module's global scope global_variable = 'Foo' …