Python Tips

How to add key value pair to a dictionary in Python? You can add key value pairs to an existing dictionary by couple of methods. Let us see them in detail.

Here is the simple method to check if the list is empty or not in python programming language.

Here is a simple way to copy a file in Python programming using one of the copy methods in shutil library module.

There are several ways to get a sub-string from a string in Python programming. Here we will see a simple slicing techniques to get sub string.

Here is a simple method to find the current directory of the script file in Python programming using a method from the os module.

Sometime you may need to manually raise exception in Python programming instead of thrown automatically.

There are couple of simple ways to get the last element of a list in Python programming. Let us see both these methods with samples.

Here is a simple tip to find the number of elements in a list in Python programming. Get the count of elements in a list.

Here we will see simple tip to cinvert a string to datetime object in Python programming using the datetime.strptime() method.

To check and parse a string to float, I wrote two simple functions. One of the function checks for float and the other converts the string to a float.

There are couple of efficient ways to merge / join / concatenate multiple lists in Python programming. Let’s see how to use them with example.

Here we will see how to write date from list to a file. We will also see a simple technique to write every list element in separate line in the file.

Here we will see how to open the file, read the contents to a list variable with a line per list item. Reading a file into a list is quiet simple in python.

list = list should not be used to copy or clone. Doing so will not copy the contents of one list to another. Instead the child list will be a reference to the master list.

In some situations you may need to use more than one exception in a single except clause. Here is the syntax to catch multiple exceptions in a single line.

Here is one of the method to extract numbers from string in Python. This method can extract integers, float and negative numbers and convert them to float.

split delimited string in Python: To split a string based on a delimiter and store the result in a list, we can use the str.split() method.