Easy methods to Learn a File in Python

If you might want to learn a file in Python, then you should utilize the open() built-in perform that can assist you.

Let’s say that you’ve got a file known as somefile.txt with the next contents:

Hey, it is a take a look at file
With some contents

Easy methods to Open a File and Learn it in Python

We will learn the contents of this file as follows:

f = open("somefile.txt", "r")
print(f.learn())

This can print out the contents of the file.

If the file is in a distinct location, then we might specify the placement as effectively:

f = open("/some/location/somefile.txt", "r")
print(f.learn())

Easy methods to Solely Learn Elements of a File in Python

In the event you don’t need to learn and print out the entire file utilizing Python, then you’ll be able to specify the precise location that you just do need.

f = open("somefile.txt", "r")
print(f.learn(5))

This can specify what number of characters you need to return from the file.

Easy methods to Learn Traces from a File in Python

If you might want to learn every line of a file in Python, then you should utilize the readline() perform:

f = open("somefile.txt", "r")
print(f.readline())

In the event you known as this twice, then it might learn the primary two traces:

f = open("somefile.txt", "r")
print(f.readline())
print(f.readline())

A greater method to do that, is to loop by means of the file:

f = open("somefile.txt", "r")
for x in f:
  print(x)

Easy methods to Shut a File in Python

It’s at all times good apply to shut a file after you could have opened it.

It’s because the open() methodology, will preserve a file handler pointer open to that file, till it’s closed.

f = open("somefile.txt", "r")
print(f.readline())
f.shut()