How-to articles, tricks, and solutions about PYTHON
How can I randomly select an item from a list?
You can use the random module's choice function to select a random element from a list.
How can I remove a key from a Python dictionary?
You can use the del statement to remove a key-value pair from a dictionary in Python.
How can I remove a trailing newline?
To remove a trailing newline from a string in Python, you can use the rstrip() method.
How can I safely create a nested directory?
To safely create a nested directory in python, you can use the os module and the makedirs function.
How can I use Python to get the system hostname?
You can use the socket module in Python to get the hostname of the system.
How can I write a `try`/`except` block that catches all exceptions?
You can catch all exceptions by using the Exception class in the except block, like this:
How can the Euclidean distance be calculated with NumPy?
Here is a code snippet that shows how to calculate the Euclidean distance using NumPy:
How do I access the ith column of a NumPy multidimensional array?
You can access the ith column of a NumPy multidimensional array by using the following syntax:
How do I append one string to another in Python?
You can use the "+" operator to concatenate two strings in Python.
How do I append to a file?
To append to a file in Python, you can use the "a" mode of the built-in open() function.
How do I call a function from another .py file?
You can call a function from another .py file by importing the file and then calling the function.
How do I check if a list is empty?
To check if a list is empty in Python, you can use an if statement and the len() function.
How do I check if an object has an attribute?
You can use the hasattr function to check if an object has an attribute.