Replacing column value of a CSV file in Python
Let us see how we can replace the column value of a CSV file in Python. CSV file is nothing but a comma-delimited file.
Method 1: Using Native Python way
Using replace() method, we can replace easily a text into another text. In the below code, let us have an input CSV file as “csvfile.csv” and be opened in “read” mode. The join() method takes all lines of a CSV file in an iterable and joins them into one string. Then, we can use replace() method on the entire string and can perform single/multiple replacements. In the entire string, the given text is searched and replaced with the specified text.
The input file will be:
Method 2: Using Pandas DataFrame
We can read the CSV file as a DataFrame and then apply the replace() method.