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How-to articles, tricks, and solutions about PYTHON

if else in a list comprehension

Here's an example of using an if-else statement within a list comprehension:

list python if-statement list-comprehension

List attributes of an object

In Python, you can use the built-in function dir() to list the attributes of an object.

class python python-3.x

Python Requests throwing SSLError

Here's a code snippet that demonstrates how to use the Python requests library to make a GET request to a URL, while handling a possible SSLError:

python ssl python-requests urllib3

Working with UTF-8 encoding in Python source

Here is a code snippet that demonstrates how to work with UTF-8 encoding in a Python source file:

encoding UTF-8 python character-encoding

How do I put a variable’s value inside a string (interpolate it into the string)?

In Python, you can use the format() method or f-strings (available in Python 3.6 and above) to interpolate a variable's value into a string.

string python variables

Extracting just Month and Year separately from Pandas Datetime column

You can extract the month and year separately from a Pandas datetime column using the dt accessor.

datetime python pandas

How to initialize a two-dimensional array in Python?

You can use the built-in list function to create a 2D array (also known as a list of lists) in Python.

python multidimensional-array

In Python, how do I convert all of the items in a list to floats?

You can use a for loop and the float() function to convert each item in a list to a float.

list python casting

Convert columns to string in Pandas

To convert all columns in a Pandas DataFrame to strings, you can use the following code snippet:

string python type-conversion pandas

Converting Dictionary to List?

In Python, you can convert a dictionary to a list of its keys or values using the keys() and values() methods, respectively.

list python dictionary