[python] Print string to text file

I'm using Python to open a text document:

text_file = open("Output.txt", "w")

text_file.write("Purchase Amount: " 'TotalAmount')


I want to substitute the value of a string variable TotalAmount into the text document. Can someone please let me know how to do this?

This question is related to python string text file-io

The answer is

If you are using numpy, printing a single (or multiply) strings to a file can be done with just one line:

numpy.savetxt('Output.txt', ["Purchase Amount: %s" % TotalAmount], fmt='%s')

With using pathlib module, indentation isn't needed.

import pathlib
pathlib.Path("output.txt").write_text("Purchase Amount: {}" .format(TotalAmount))

As of python 3.6, f-strings is available.

pathlib.Path("output.txt").write_text(f"Purchase Amount: {TotalAmount}")

If you are using Python3.

then you can use Print Function :

your_data = {"Purchase Amount": 'TotalAmount'}
print(your_data,  file=open('D:\log.txt', 'w'))

For python2

this is the example of Python Print String To Text File

def my_func():
    this function return some value
    return 25.256

def write_file(data):
    this function write data to file
    :param data:
    file_name = r'D:\log.txt'
    with open(file_name, 'w') as x_file:
        x_file.write('{} TotalAmount'.format(data))

def run():
    data = my_func()


In case you want to pass multiple arguments you can use a tuple

price = 33.3
with open("Output.txt", "w") as text_file:
    text_file.write("Purchase Amount: %s price %f" % (TotalAmount, price))

More: Print multiple arguments in python

Examples related to python

programming a servo thru a barometer Is there a way to view two blocks of code from the same file simultaneously in Sublime Text? python variable NameError Why my regexp for hyphenated words doesn't work? Comparing a variable with a string python not working when redirecting from bash script is it possible to add colors to python output? Get Public URL for File - Google Cloud Storage - App Engine (Python) Real time face detection OpenCV, Python xlrd.biffh.XLRDError: Excel xlsx file; not supported Could not load dynamic library 'cudart64_101.dll' on tensorflow CPU-only installation

Examples related to string

How to split a string in two and store it in a field String method cannot be found in a main class method Kotlin - How to correctly concatenate a String Replacing a character from a certain index Remove quotes from String in Python Detect whether a Python string is a number or a letter How does String substring work in Swift How does String.Index work in Swift swift 3.0 Data to String? How to parse JSON string in Typescript

Examples related to text

Difference between opening a file in binary vs text How do I center text vertically and horizontally in Flutter? How to `wget` a list of URLs in a text file? Convert txt to csv python script Reading local text file into a JavaScript array Python: How to increase/reduce the fontsize of x and y tick labels? How can I insert a line break into a <Text> component in React Native? How to split large text file in windows? Copy text from nano editor to shell Atom menu is missing. How do I re-enable

Examples related to file-io

Python, Pandas : write content of DataFrame into text File Saving response from Requests to file How to while loop until the end of a file in Python without checking for empty line? Getting "java.nio.file.AccessDeniedException" when trying to write to a folder How do I add a resources folder to my Java project in Eclipse Read and write a String from text file Python Pandas: How to read only first n rows of CSV files in? Open files in 'rt' and 'wt' modes How to write to a file without overwriting current contents? Write objects into file with Node.js