You can merge multiple text files to a single CSV file in Python by using the glob.glob(‘./*.txt’) expression to filter out all path names of text files in a given folder. Then iterate over all those path names and use the open() function to read the file contents and write append them to the CSV. … Read more
You can convert a text file to a CSV file in Python in four simple steps: (1) Install the Pandas library, (2) import the Pandas library, (3) read the CSV file as DataFrame, and (4) write the DataFrame to the file: (Optional in shell) pip install pandas import pandas as pd df = pd.read_csv(‘my_file.txt’) df.to_csv(‘my_file.csv’, … Read more
💬 Question: How to convert an .avro file to a .csv file in Python? Solution: To convert an Avro file my_file.avro to a CSV file my_file.csv, create a CSV writer using the csv module and iterate over all rows using the iterator returned by fastavro.reader(). Then write each row to a file using the writerow() … Read more
The easiest way to convert a space-delimited file to a comma-separated values (CSV) file is to use the following three lines of code: import pandas as pd df = pd.read_csv(‘my_file.txt’, sep=’\s+’, header=None) df.to_csv(‘my_file.csv’, header=None) We’ll explain this and other approaches in more detail next—scroll down to Method 3 for this exact method. Problem Formulation Given … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to repeat a string multiple times in Python. Over your career as a Python coder, you will encounter situations when a string needs to be output/displayed a specified number of times. The examples below offer you various ways to accomplish this task. 💬 Question: … Read more
[😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁😁] 100% Problem Formulation and Solution Overview In this article, you’ll learn how to configure and display a progress bar. A progress bar is commonly used in Python or, for that matter, any other programming language to show the user an application’s progress. For example, an installation, a transferring of files, or any other commands. … Read more
How to write a NumPy array to a CSV file in Python? To write a NumPy array to a CSV file, use the np.savetxt() function and pass the filename as a string, as well as the array into it. Optionally, you can specific the file format, the delimiter such as comma or semicolon, and other … Read more
💬 Question: How to convert a list of custom objects to a csv file? Example: Given is a list of custom objects of, say, type Employee that holds the name, job description, and income like so: Your goal is to write the content of the list of objects into a comma-separated-values (CSV) file format. Your … Read more
Problem Formulation Given a Python string: 💬 Question: How to convert the string to a CSV file in Python? The desired output is the CSV file: ‘my_file.csv’: a,b,c 1,2,3 9,8,7 Simple Vanilla Python Solution To convert a multi-line string with comma-separated values to a CSV file in Python, simply write the string in a file … Read more
Problem Formulation 💬 How to convert .blf from a CAN bus to .csv in Python? 💡 What is BLF? The Binary Logging Format (BLF) is a proprietaryCAN log format from the automative company Vector Informatik GmbH. 💡 What is CAN? The Controller Area Network (CAN bus) is a message-based protocol standard for microcontrollers in vehicles … Read more
Problem Formulation Given a CSV file (e.g., stored in the file with name ‘my_file.csv’). INPUT: file ‘my_file.csv’ 9,8,7 6,5,4 3,2,1 Challenge: How to convert it to a NumPy Array? OUTPUT: 2D NumPy Array [[9. 8. 7.] [6. 5. 4.] [3. 2. 1.]] Method 1: np.loadtxt() You can convert a CSV file to a NumPy array … Read more
Problem Formulation and Solution Overview In this article, you’ll learn how to write a 1D, 2D and 3D NumPy Array to a file in Python. To make it more fun, we have the following running scenario: Bart, a Manager at ShopSmart (and part-time Python coder), is responsible for purchasing Lottery Numbers for their group. Bart … Read more