Import Text Python to Read Each Word
Tabular array of Contents Hide
- Steps to Read Text File in Python
- Python open() function
- Methods for Reading file contents
- Python close() function
- Examples for Reading a Text file in Python
- Example 1 – Read the entire text file using the read() function
- Example 2 – Read the specific length of characters in a text file using the read() function
- Instance 3 – Read a unmarried line in a file using the readline() office
- Case 4- Read text file line by line using the readline() function
- Example five – Read all the lines every bit a list in a file using the readlines() office
Python provides built-in functions to perform file operations, such as creating, reading, and writing files. There are mainly two types of files that Python can handle, normal text files and binary files. In this tutorial, we will take a expect at how to read text files in Python.
Steps to Read Text File in Python
In Python, to read a text file, you lot need to follow the below steps.
Step 1: The file needs to exist opened for reading using the open() method and pass a file path to the part.
Footstep 2: The side by side step is to read the file, and this tin be accomplished using several congenital-in methods such equally read() , readline() , readlines() .
Step 3: Once the read operation is performed, the text file must be airtight using the shut() office.
At present that we have seen the steps to read the file content let's sympathize each of these methods before getting into examples.
Python open() office
The open up() function opens the file if possible and returns the corresponding file object.
Syntax – open up(file, mode='r', buffering=-1, encoding=None, errors=None, newline=None, closefd=True, opener=None)
The open() role has a lot of parameters. Permit's take a wait at the necessary params for reading the text file. It opens the file in a specified mode and returns a file object.
Parameters
- file – path like object which represents the file path
- mode (Optional) – The
modeis an optional parameter. It's a string that specifies the mode in which yous desire to open the file.
| Way | Description |
|---|---|
'r' | Open a file for read style (default if mode is not specified) |
'w' | Open a file for writing. Python will create a new file if does not exist or truncates a file content if file exists |
'x' | Open a file for exclusive creation. |
'a' | Open a file for appending the text. Creates a new file if file does non exist. |
't' | Open a file in text manner. (default) |
'b' | Open a file in binary manner. |
'+' | Open a file for updating (reading and writing) |
Instance
file = open('C:\howdy.txt','r') Methods for Reading file contents
There are 3 ways to read data from a text file.
-
read(): Theread()function returns the read bytes in the form of string. This method is useful when you have a small file, and you desire to read the specified bytes or entire file and store information technology into a string variable. -
readline(): Thereadline()part returns ane line from a text file and retuns in the form of cord. -
readlines(): Thereadlines()office reads all the lines from the text file and returns each line as a string chemical element in a list.
Python close() function
The file volition remain open until you shut the file using the close() function. Information technology is a must and best exercise to perform this operation subsequently reading the data from the file as it frees up the memory space acquired by that file. Otherwise, information technology may cause an unhandled exception.
Examples for Reading a Text file in Python
Example 1 – Read the entire text file using the read() function
In the below case, we are reading the entire text file using the read() method. The file can be opened in the read mode or in a text manner to read the data, and information technology tin can be stored in the string variable.
# Program to read the unabridged file using read() function file = open up("python.txt", "r") content = file.read() print(content) file.close() # Programme to read the entire file (absolute path) using read() role file = open("C:/Projects/Tryouts/python.txt", "r") content = file.read() print(content) file.close() Output
Dear User, Welcome to Python Tutorial Accept a great learning !!! Cheers Case 2 – Read the specific length of characters in a text file using the read() part
In that location are times where you need to read the specific bytes in a file. In that case, you tin can use the read() function by specifying the bytes. The method volition output only the specified bytes of characters in a file, as shown beneath.
# Program to read the specific length # of characters in a file using read() function file = open up("python.txt", "r") content = file.read(xx) print(content) file.shut() Output
Dear User, Welcome Example iii – Read a unmarried line in a file using the readline() function
If you want to read a unmarried line in a file, then you could achieve this using readline() role. You besides use this method to retrieve specific bytes of characters in a line, similar to the read() method.
# Plan to read single line in a file using readline() function file = open up("python.txt", "r") content = file.readline() impress(content) file.close() Output
Love User, Example four- Read text file line by line using the readline() function
If you want to traverse the file line by line and output in any format, then you could use the while loop with the readline() method equally shown below. This is the most effective way to read the text file line by line in Python.
# Program to read all the lines in a file using readline() function file = open up("python.txt", "r") while Truthful: content=file.readline() if not content: pause print(content) file.close() Output
Love User, Welcome to Python Tutorial Have a great learning !!! Thank you Case 5 – Read all the lines as a list in a file using the readlines() office
The readlines() method will read all the lines in the file and outputs in a list of strings, as shown beneath. Subsequently you can utilise the listing to traverse and extract the specified content from the list.
# Program to read all the lines as a list in a file # using readlines() function file = open up("python.txt", "r") content=file.readlines() print(content) file.shut() Output
['Dear User,\n', 'Welcome to Python Tutorial\due north', 'Have a great learning !!!\northward', 'Cheers'] 
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Source: https://itsmycode.com/python-read-text-file/
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