Seems to me like you need a basic computer usage course first before you move on to programming. Take like 1 or 2 days to learn the basics such as what files are, what file extensions are, what directories are, how to cut, copy and paste things, what computer programs are, what an operating system is, what the internet is, internet browser, search engine, maybe a few other concepts, and then you will be good to go. Answer from xxxHalny on reddit.com
W3Schools
w3schools.com › python › python_file_write.asp
Python File Write
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GeeksforGeeks
geeksforgeeks.org › python › writing-to-file-in-python
Writing to file in Python - GeeksforGeeks
December 27, 2025 - Example: The following code writes a small sequence of bytes into a file called file.bin and then reads it back in binary mode. ... pathlib provides an object-oriented way to work with files and paths.
Videos
13:47
WRITE FILES using Python! (.txt, .json, .csv) ✍ - YouTube
Python File Handling for Beginners
06:32
How to Save Your Python Code to a File and Run It as a Script | ...
05:55
Convert py to exe - from code to software - YouTube
How to Run Python Programs ( .py files ) in Windows 10
06:13
How to Run Python Programs ( .py files ) on Windows 11 ( All Options ...
Reddit
reddit.com › r/learnpython › how to save code as a file
r/learnpython on Reddit: How to save code as a file
September 29, 2022 -
I have never used python before, but I need it to follow some instructions. I am supposed to "Copy the code sample and save it in a file named example.py." I have the code sample, but how do I save it in a file? Do you do that in python?
Top answer 1 of 6
12
Seems to me like you need a basic computer usage course first before you move on to programming. Take like 1 or 2 days to learn the basics such as what files are, what file extensions are, what directories are, how to cut, copy and paste things, what computer programs are, what an operating system is, what the internet is, internet browser, search engine, maybe a few other concepts, and then you will be good to go.
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7
You need a text editor. Notepad would do OK, but it's better to use one meant for programming. VS Code is popular. This should have been covered in the intro part of your course.
Top answer 1 of 5
16
You could just use a multiline string:
Copyimport os
filepath = os.getcwd()
def MakeFile(file_name):
temp_path = filepath + file_name
with open(file_name, 'w') as f:
f.write('''\
def print_success():
print "sucesss"
''')
print 'Execution completed.'
If you like your template code to be indented along with the rest of your code, but dedented when written to a separate file, you could use textwrap.dedent:
Copyimport os
import textwrap
filepath = os.getcwd()
def MakeFile(file_name):
temp_path = filepath + file_name
with open(file_name, 'w') as f:
f.write(textwrap.dedent('''\
def print_success():
print "sucesss"
'''))
print 'Execution completed.'
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13
Copylines = []
lines.append('def print_success():')
lines.append(' print "sucesss"')
"\n".join(lines)
If you're building something complex dynamically:
Copyclass CodeBlock():
def __init__(self, head, block):
self.head = head
self.block = block
def __str__(self, indent=""):
result = indent + self.head + ":\n"
indent += " "
for block in self.block:
if isinstance(block, CodeBlock):
result += block.__str__(indent)
else:
result += indent + block + "\n"
return result
You could add some extra methods, to add new lines to the block and all that stuff, but I think you get the idea..
Example:
Copyifblock = CodeBlock('if x>0', ['print x', 'print "Finished."'])
block = CodeBlock('def print_success(x)', [ifblock, 'print "Def finished"'])
print block
Output:
Copydef print_success(x):
if x>0:
print x
print "Finished."
print "Def finished."
Reddit
reddit.com › r/learnpython › how does one read and write to files in python?
r/learnpython on Reddit: How does one read and write to files in python?
February 24, 2021 -
I have watched many a YouTube video, but alas, it just confused me more. What is the python equivalent to things like File.WriteLine in c#?
Thanks in advance.
Top answer 1 of 4
3
https://docs.python.org/3/tutorial/inputoutput.html#reading-and-writing-files
2 of 4
2
To write a line: text = 'Some text to write to a file' with open('test.txt', 'w') as fd: fd.write(text + '\n') And to read lines: with open('test.txt') as fd: # mode 'r' is default for line in fd: # can iterate over lines in a text file print(line)
Python documentation
docs.python.org › 3 › tutorial › inputoutput.html
7. Input and Output — Python 3.14.3 documentation
There are several ways to present the output of a program; data can be printed in a human-readable form, or written to a file for future use. This chapter will discuss some of the possibilities. Fa...
Programiz
programiz.com › python-programming › file-operation
Python File Operation (With Examples)
For example, Suppose we have a file named file2.txt. ... Now let's write to this file. # open the file2.txt in write mode file2 = open('file2.txt', 'w') # write new contents to the file2.txt file file2.write('Learning Python is interesting.\n') file2.write('File operations are useful.\n')
CodingNomads
codingnomads.com › python-write-to-file
Python: Write to File
In the code snippet above, you're opening a file called output.txt in write mode ("w") and assigning that to the variable file_out. If there's no file called output.txt in the directory you're running your script from, then it will be created. Note: If a file called output.txt already exists, all of its content will be instantly deleted if you open it up in write mode, as shown above. After opening the file, you can write data to it using the .write() method on your file_out variable:
LearnPython.com
learnpython.com › blog › write-to-file-python
How to Write to File in Python | LearnPython.com
Let’s run an example: # import import csv # Create header and data variables header = ['last_name', 'first_name', 'zip_code', 'spending'] data = ['Doe', 'John', 546000, 76] with open('customers.csv', 'w', encoding='UTF8', newline='') as file: ...
Top answer 1 of 14
2
You’re welcome.
For writing string objects, yes, I’ll use the print() function, because one can use all the functionality that has been provided, rather than having to construct the object in code.
Speaking to your thread title: is that a “better” way? I think so, for that particular use case.
Th…
2 of 14
0
“Better” with code usually means “more accurately represents a programmer’s intent”. So what is the intent here?
freeCodeCamp
freecodecamp.org › news › file-handling-in-python
File Handling in Python – How to Create, Read, and Write to a File
August 26, 2022 - Below is the code required to create, write to, and read text files using the Python file handling methods or access modes. In Python, you use the open() function with one of the following options – "x" or "w" – to create a new file: "x" – Create: this command will create a new file if and only if there is no file already in existence with that name or else it will return an error. Example ...
Scaler
scaler.com › home › topics › python › writing to file in python
Writing to File in Python - Scaler Topics
November 16, 2023 - Achieving this in Python is easily done by utilizing the open() function with the mode parameter set to 'a' (append). ... Without precaution, attempting to write to the file directly would result in overwriting these lines. However, using the 'a' mode in the open() function, we can append new data to the end of the file without affecting the existing content. Here's an example code ...
Codecademy
codecademy.com › article › handling-text-files-in-python
Handling Text Files in Python: How to Read from a File | Codecademy
The write() method allows us to write a single string to a file. It’s important to remember that write() does not add newline characters automatically, so we’ll need to insert \n if we want entries to appear on new lines. Let’s try understanding the write() method with the help of an example: ... Hello, world! Python is great! ... The above code opens the file example.txt in write mode, writes two lines of text (“Hello, world!” and “Python is great!”), and then automatically closes the file and erases any existing information.
GeeksforGeeks
geeksforgeeks.org › python › create-a-new-text-file-in-python
Create a New Text File in Python - GeeksforGeeks
July 23, 2025 - # Using open() function file_path = "new_file.txt" # Open the file in write mode with open(file_path, 'w') as file: # Write content to the file file.write("Hello, this is a new text file created using open() function.") print(f"File '{file_path}' created successfully.") ... In this example, in below code the Path class from the pathlib module to represent a file path named new_file_method3.txt.
Top answer 1 of 4
9
Every time you enter and exit the with open... block, you're reopening the file. As the other answers mention, you're overwriting the file each time. In addition to switching to an append, it's probably a good idea to swap your with and for loops so you're only opening the file once for each set of writes:
with open("output.txt", "a") as f:
for key in atts:
f.write(key)
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5
You need to change the second flag when opening the file:
wfor only writing (an existing file with the same name will be erased)aopens the file for appending
Your code then should be:
with open("output.txt", "a") as f:
DataCamp
datacamp.com › tutorial › python-write-to-file
Python Write to File: Working With Text, CSV, and JSON Files | DataCamp
January 21, 2026 - Run this script, and Python creates a file called example.txt in the same directory as your code. ... This works, but it’s not how you should write files long-term. Manually opening and closing files is easy to forget and easy to get wrong.
W3Schools
w3schools.com › python › python_file_handling.asp
Python File Open
Python Overview Python Built-in Functions Python String Methods Python List Methods Python Dictionary Methods Python Tuple Methods Python Set Methods Python File Methods Python Keywords Python Exceptions Python Glossary · Built-in Modules Random Module Requests Module Statistics Module Math Module cMath Module · Remove List Duplicates Reverse a String Add Two Numbers · Python Examples Python Compiler Python Exercises Python Quiz Python Challenges Python Server Python Syllabus Python Study Plan Python Interview Q&A Python Bootcamp Python Certificate Python Training
GeeksforGeeks
geeksforgeeks.org › python › file-handling-python
File Handling in Python - GeeksforGeeks
In Python, writing to a file is done using the mode "w". This creates a new file if it doesn’t exist, or overwrites the existing file if it does. The write() method is used to add content. After writing, make sure to close the file. Example: Writing to a file (overwrites if file exists)
Published December 10, 2025
Python Morsels
pythonmorsels.com › creating-and-writing-file-python
Write to a file in Python - Python Morsels
October 18, 2021 - Python wrote just one line because it wrote exactly the text we gave to it, and we didn't give it any newline characters (\n) to write. To write two separate lines to this file, we should end each of our lines in a newline character:
JetBrains
jetbrains.com › help › pycharm › creating-and-running-your-first-python-project.html
Create and run your first project | PyCharm Documentation
You can save it to make it a permanent configuration or modify its parameters. For more information about running Python code, refer to Run/debug configurations. Congratulations on completing your first script in PyCharm! Let's repeat what you've done with the help of PyCharm: Created a project. Created a file in the project.