File with code #!/usr/bin/env python3

import shutil

def check_disk_usage(disk, min_absolute, min_percent):
    """Returns True if there is enough free disk space, false otherwise."""
    du = shutil.disk_usage(disk)
    # Calculate the percentage of free space
    percent_free = 100 * du.free / du.total
    # Calculate how many free gigabytes
    gigabytes_free = du.free / 2**30
    if percent_free < min_percent or gigabytes_free < min_absolute:
        return False
    return True

# Check for at least 2 GB and 10% free
if not check_disk_usage("/", 2*2**30, 10):
    print("ERROR: Not enough disk space")
    return 1

print("Everything ok")
return 0 Command: $ cp disk_usage.py disk_usage_original.py 
$ cp disk_usage.py disk_usage_fixed.py 
# this throws an error
$ ./disk_usage_fixed.py Code output: File "./disk_usage_fixed.py", line 19

    return 1

    ^

SyntaxError: 'return' outside function File with code Adds at the beginning, then change to and to . import sys return 1 sys.exit(1) return 0 sys.exit(0) #!/usr/bin/env python3

import shutil
import sys

def check_disk_usage(disk, min_absolute, min_percent):
    """Returns True if there is enough free disk space, false otherwise."""
    du = shutil.disk_usage(disk)
    # Calculate the percentage of free space
    percent_free = 100 * du.free / du.total
    # Calculate how many free gigabytes
    gigabytes_free = du.free / 2**30
    if percent_free < min_percent or gigabytes_free < min_absolute:
        return False
    return True

# Check for at least 2 GB and 10% free
if not check_disk_usage("/", 2*2**30, 10):
    print("ERROR: Not enough disk space")
    sys.exit(1)

print("Everything ok")
sys.exit(0) Command: $ ./disk_usage_fixed.py Code output: ERROR: Not enough disk space File with code Change in previous file to .Because the code changes the value to gigabytes, so don't need to multiply by . check_disk_usage("/", 2*2**30, 10) check_disk_usage("/", 2, 10) gigabytes_free = du.free / 2**30 2**30 #!/usr/bin/env python3

import shutil
import sys

def check_disk_usage(disk, min_absolute, min_percent):
    """Returns True if there is enough free disk space, false otherwise."""
    du = shutil.disk_usage(disk)
    # Calculate the percentage of free space
    percent_free = 100 * du.free / du.total
    # Calculate how many free gigabytes
    gigabytes_free = du.free / 2**30
    if percent_free < min_percent or gigabytes_free < min_absolute:
        return False
    return True

# Check for at least 2 GB and 10% free
if not check_disk_usage("/", 2, 10):
    print("ERROR: Not enough disk space")
    sys.exit(1)

print("Everything ok")
sys.exit(0) Command: $ ./disk_usage_fixed.py Code output: Everything ok Command: $ diff -u disk_usage_original.py disk_usage_fixed.py > disk_usage.diff
$ cat disk_usage.diff Code output: --- disk_usage_original.py	2023-06-22 15:13:38.591579963 -0700

+++ disk_usage_fixed.py	2023-06-22 15:41:35.013023839 -0700

@@ -1,6 +1,7 @@

 #!/usr/bin/env python3

 

 import shutil

+import sys

 

 def check_disk_usage(disk, min_absolute, min_percent):

     """Returns True if there is enough free disk space, false otherwise."""

@@ -14,9 +15,9 @@

     return True

 

 # Check for at least 2 GB and 10% free

-if not check_disk_usage("/", 2*2**30, 10):

+if not check_disk_usage("/", 2, 10):

     print("ERROR: Not enough disk space")

-    return 1

+    sys.exit(1)

 

 print("Everything ok")

-return 0

+sys.exit(0) Command: $ patch disk_usage.py < disk_usage.diff Code output: patching file disk_usage.py Command: $ ./disk_usage.py Code output: Everything ok

Walkthroughs, tutorials, guides, and tips. This story will teach you how to do something new or how to do something better.

Git Guide 4: Take Your First Steps With Git

Git Guide 1: How to Apply Changes

Read My Stories

Portfolio

Hire Me

Buy Me a Coffee

Too Long; Didn't Read

Make resilience your competitive advantage

Git Guide 2: A Practical Application of Diff and Patch

About Author

Comments

TOPICS

THIS ARTICLE WAS FEATURED IN

Related Stories

Untitled Story

Git Guide 4: Take Your First Steps With Git

10 GitHub Repositories to Follow

3 Easy Steps to Change Main Git Branch on Heroku

28 Stories To Learn About Markdown

194 Stories To Learn About Git

Git Guide 4: Take Your First Steps With Git

10 GitHub Repositories to Follow

3 Easy Steps to Change Main Git Branch on Heroku

28 Stories To Learn About Markdown

194 Stories To Learn About Git

Light-Mode

Classic

Newspaper

Dark-Mode

Neon Noir

Minty

HN StartUps