Python 3 latest code crumbs
Write CSV with Python
Apr 4, 2023 by erik
Writing CSV with Python is easy! We can use the built-in
csv library to write to a file. Simply open a file, create a
csv_writer, and start adding rows to the file with the
write_row method which takes any iterable...
Assigning and printing Python variables
Jan 31, 2023 by erik
Variables allow us to store things in memory for as long as the Python program runs. Like a restaurant reservation under your name, a variable is a named reservation of a small part of your computer's memory. We assign a...
Creating 2D and 3D multidimensional arrays with NumPy
Nov 11, 2022 by erik
We can create ndarrays using the
np.array function. We need to use nested lists to introduce the extra dimensions. As you can see when running this example, the output (when using
NumPy 1D array creation with the copy option
Nov 8, 2022 by erik
When creating NumPy arrays, the copy argument controls whether a copy of the input object is made or not. When copy is
True, any changes in the resulting array will not change the input object. However, if it is
Reading CSV with Python's built-in CSV module
Nov 6, 2022 by erik
Here's how to read a CSV file using Python. The
csv.reader returns Python lists for each row. We print them here, but you can do anything you want with the parsed data....