Introduction
Welcome to my 50th blog post on the Python journey. On day 50, I learned about reading and writing in the Python file. In this blog, I will discuss the readline() and writelines() functions in Python. Now Let's dive into more details and understand File handling in Python.
So let's get started......
readline() method
It reads single lines from the file
To read multiple lines we need to use loops
This method reads all the lines from a file and returns them as a string
To use the content as an integer or another datatype, we need to typecast the string returned.
Example -
f = open('myfile.txt', 'r')
while True:
line = f.readline()
if not line:
break
print(line)
writelines() method
This method writes a sequence of strings in a file.
The sequence that you want to write can be any iterable object, such as a list or a tuple.
Example -
f = open('myfile.txt', 'w')
lines = ['line 1\n', 'line 2\n', 'line 3\n']
f.writelines(lines)
f.close()
Note: - The writelines() method does not add a new line character between the string. If you want to add new lines, you can use a loop to write each string separately
It is a good practice to close the file, once you are done with it
f = open('myfile.txt', 'w')
lines = ['line 1', 'line 2', 'line 3']
for line in lines:
f.write(line + '\n')
f.close()
Resources Used
You can watch the video of Day#50 by clicking on the below link 👇👇👇👇👇
Conclusion
Thanks, guys for going through this blog post. On day 50, I learned about reading and writing into a file using readline() and writelines() function in Python. I also wrote a bunch of code to practice these concepts.
Thank you if you read this post and have found this post useful. I hope you have joined me and are enjoying my magical journey of Python coding. This is it for Day #50
See you in the next one.....
About Me
Hey Guys, I am Chintan Jain from CodeWithJain. I am a trader and content creator. I am also passionate about tech and hence wanted to explore the field of tech. I always wanted to learn to code so I watched many tutorials but procrastinated practicing coding. To get into the habit of coding consistently I am starting to BLOG with HASHNODE on daily basis.
I will document my coding journey from scratch and share my daily learnings in a blog post on HASHNODE. I hope you all will enjoy my content and my coding journey.
So what are you waiting for, smash the FOLLOW and LIKE buttons and follow along my coding journey, a step to create more beautiful digital products and empower people.