If you want to try this yourself, try to build the interactive app above.
The WHITE text is output from the program. The YELLOW input is what the users types.
Lists and arrays
names = ['jeff', 'sarah', 'mark']
second_name = names[1]
names.append('tony')
# names -> ['jeff', 'sarah', 'mark', 'tony']
Complex conditionals
if x < 10 and not y is None:
print(' Working with small x and existing y ')
OS Independent file names
import os
full_file = os.path.abspath(
os.path.join(base_dir, dir1, name ) )
name convention
if __name__ == '__main__':
print('this file is running as the program')
print('rather than as an imported module')
File I/O
with open(filename, 'r') as fin:
# returns ['line one\n', 'line two\n', '...']
text = fin.readlines()