joined_list = [item for list_ in [list_one, list_two] for item in list_] It has all the advantages of the newest approach of using Additional Unpacking Generalizations - i.e. you can concatenate an arbitrary number of different iterables (for example, lists, tuples, ranges, and generators) that way - and it's not limited to Python 3.5 or later.

May 30, 2009 · The simplest way to display last element in python is >>> list[-1:] # returns indexed value [3] >>> list[-1] # returns value 3 there are many other method to achieve such a goal but these are short and sweet to use.

Oct 31, 2013 · Use the insert method of a list: l = list(...) l.insert(index, item) Alternatively, you can use a slice notation: l[index:index] = [item] If you want to move an item that's already in the list to the specified position, you would have to delete it and insert it at the new position: l.insert(newindex, l.pop(oldindex))

How to access List elements in Python. 0. Access individual items in a list. 0.

Jul 8, 2018 · C:\Users\user>pyenv --version pyenv 2.64.11 C:\Users\name>pyenv pyenv 2.64.11 Usage: pyenv <command> [<args>] Some useful pyenv commands are: commands List all available pyenv commands duplicate Creates a duplicate python environment local Set or show the local application-specific Python version global Set or show the global Python version ...

In addition to these answers, I'll include a function (python 3) for spewing out virtually the entire structure of any value. It uses dir to establish the full list of property names, then uses getattr with each name. It displays the type of every member of the value, and when possible also displays the entire member:

In some cases when using numpy arrays, using random.shuffle created duplicate data in the array.. An alternative is to use numpy.random.shuffle.

Looping over a nested list in Python. Printing out individual letters-1. Python 2.6:Trying to run an if ...

Since a list comprehension creates a list, it shouldn't be used if creating a list is not the goal; it shouldn't be used simply to write a one-line for-loop; so refrain from writing [print(x) for x in range(5)] for example.

Aug 28, 2024 · For Python 3, I do the same kind of thing as shxfee's answer: def print_list(my_list): print('\n'.join(my_list)) a = ['foo', 'bar', 'baz'] print_list(a) which outputs. foo bar baz As an aside, I use a similar helper function to quickly see columns in a pandas DataFrame. def print_cols(df): print('\n'.join(df.columns))