PythonAnywhere: Copy my projects to GitHub

1. Introduction

I want to copy my projects into my repository on GitHub.  How can I do it?

 

2. Talking with ChatGPT

I am using Pythonanywhere now.  I want to copy my projects to my repository on GitHub.  The directory structure of the projects is:

 

├── ~ 

│       ├──dj4e-samples

│       ├──django_projects

│                       └── mysite 

 

I want to put "django_projects" on my repo.  This "django_projects" include settings.py which includes:

# SECURITY WARNING: keep the secret key used in production secret!

SECRET_KEY = "....   "

I think I should not put this SECRET_KEY into my repo.

I heard of .env which can be used in this case.  Can you tell me what is the best way to put "django_projects" into my repo?

 

You're absolutely right — never put your SECRET_KEY or other secrets (like database passwords or API keys) into your GitHub repository, especially public ones. The best practice is to use an environment variable file like .env, and load it in your Django settings.

Here’s a step-by-step guide to safely upload your django_projects directory to GitHub using a .env file.

---

✅ Step 1: Create a .env file

Inside your django_projects/mysite/mysite/ directory (where settings.py is), create a .env file:

You can see this file by:

ls -al

Inside .env, add:

Add any other sensitive settings you don’t want in GitHub.

 

[MY NOTE]

ChatGPT said to put .env in the same directory as settings.py, but it may be better to put .env in:

~/django_projects/mysite/

where manage.py is placed.  See 6. follow-up questions 4.

 

[MY NOTE]

What happens if I create two or more .env files for one project?  It's not recommended.

See 8. follow-up questions 6.

 

---

✅ Step 2: Install python-dotenv (if not already installed)

In your PythonAnywhere virtual environment:

 

---

✅ Step 3: Modify settings.py to read from .env

At the top of your settings.py, add:

Make sure the .env file is in the correct path relative to settings.py.

 

[MY NOTE]

In my case, many apps and other files such as .env and manage.py are placed in django_projects/mysite/.  And settings.py is placed in django_projects/mysite/mysite/.

So, the code to be added to settings.py will be:

import os

import json                                     # for json.loads()

from dotenv import load_dotenv

from pathlib import Path

 

# Base directory of your project (where manage.py is)

BASE_DIR = Path(__file__).resolve().parent.parent

 

# Load environment variables from .env file at BASE_DIR

load_dotenv(BASE_DIR / '.env')

 

# Now you can use:

SECRET_KEY = os.getenv("SECRET_KEY")

DEBUG = os.getenv("DEBUG") == "True"            # see MY NOTE below

ALLOWED_HOSTS = json.loads(os.getenv("ALLOWED_HOSTS"))    # see MY NOTE below

See 6. follow-up questions 4 for more details.

 

[MY NOTE]

Let me explain this line: 

DEBUG = os.getenv("DEBUG") == "True"

DEBUG has to be a boolean.  Since os.getenv("DEBUG") returns a string "True" or "False", you will get a boolean by (os.getenv("DEBUG") == "True").  It may be easier to see if you enclose the expression in parentheses.  

See 12. follow-up questions 10 for more details.

 

[MY NOTE]

Let me explain this line: 

ALLOWED_HOSTS = json.loads(os.getenv("ALLOWED_HOSTS")) 

ALLOWED_HOSTS has to be a list. 

First, in .env, make sure ALLOWED_HOSTS is a valid JSON string such as:

ALLOWED_HOSTS=["*"]

or if you have two or more hosts, 

ALLOWED_HOSTS=["example.com", "127.0.0.1", "..."]

Then, through os.getenv("ALLOWED_HOSTS"), you will get a valid JSON string, and you will convert it to a list through json.loads(). 

See 13. follow-up questions 11 for more details.

 

 

---

✅ Step 4: Add .env to .gitignore

In the root of django_projects, create or update a .gitignore file:

This prevents the .env file from being uploaded to GitHub.

 

[MY NOTE]

If you put *.pyc in .gitignore, all .pyc files anywhere in the project will be ignored.  `/` means a directory, and __pycache__/ will make all __pycache__ directories and contents ignored.

See 9. follow-up questions 7 for more details.

 

[MY NOTE]

.gitignore should contain the following:

.env

*.pyc

__pycache__/

venv/

*.sqlite3

See 10. follow-up questions 8 for more details.  But the following is better, I think.  See 5. follow-up questions 3.

# Ignore secret settings

.env

# Python cache

__pycache__/

*.pyc

# Django migrations

*/migrations/__pycache__/

*/migrations/*.pyc

*/migrations/*.py

# VSCode settings or other editor junk

.vscode/

*.swp

# Database files

*.sqlite3

# Media/static (if needed)

media/

staticfiles/

# other

venv/

 

---

✅ Step 5: Initialize Git and Push to GitHub

If not already initialized:

---

🔐 Summary of Benefits

• Keeps your secrets safe.

• Cleanly separates configuration from code.

• Avoids accidental exposure on GitHub.

---

 

Would you like help generating a new secure SECRET_KEY or checking that .env is working properly in your Django app?

 

3. follow-up questions 

What is this for?

cd ~/django_projects

echo ".env" >> .gitignore

echo "*.pyc" >> .gitignore

echo "__pycache__/" >> .gitignore

Can I just create a .gitignore file in the same folder as the .env file, and write ".env" in the .gitignore file?

 

Great question! Let's break it down:

---

🔍 What this does:

Each line does the following:

• cd ~/django_projects: Changes directory to your Django project.

• echo ".env" >> .gitignore: Adds .env to .gitignore, so Git ignores the .env file (your secret settings).

• echo "*.pyc" >> .gitignore: Ignores Python compiled files.

• echo "__pycache__/" >> .gitignore: Ignores the __pycache__ folder created by Python.

The >> appends the line to .gitignore. If .gitignore doesn't exist, it will be created.

---

✅ Yes, you can manually create the .gitignore file:

Absolutely! You can simply:

1. Create a file named .gitignore in the same directory as your .env and project files.

2. Open it and write:

   bash

   .env

   *.pyc

   __pycache__/

This is functionally the same as using the echo commands, just done manually.

---

✅ Summary:

You can use either:

• Terminal commands to append lines, or

• A text editor to create and edit .gitignore directly.

 

Both methods work fine. Let me know if you'd like a sample .gitignore for Django projects!

 

4. follow-up questions

This line is placed just above the SECRET_KEY in settings.py:

# SECURITY WARNING: keep the secret key used in production secret!

If this is so, what should I do when I am publishing my projects?  Do I use some hashed key?

 

Great question — and you're thinking along exactly the right lines about security!

🔐 When you publish your Django project (especially on GitHub or to production), you should not include your real SECRET_KEY in the settings.py file.

Here’s the right way to handle this:

---

✅ 1. Use a .env file for secrets (as you're doing now)

Instead of putting your actual secret in settings.py, you load it from a .env file that is not uploaded to GitHub:

.env (not tracked in Git):

settings.py:

Then, in your production or development environments, you keep the .env file locally or on the server only.

---

❌ Do not hash the secret key or make a fake one

The SECRET_KEY:

• must be the full key (not hashed or truncated),

• must be unique, long, and random,

• must remain private (do not check it into GitHub).

Hashing it would break Django’s internal security mechanisms (like password resets, session signing, etc.).

---

🛠 Bonus: Generate a new secure secret key

If you need to create one, here’s how:

In Python shell:

Or from the command line:

Use the output to update your .env.

---

📦 When deploying or publishing:

• Public GitHub repo: store .env in .gitignore, don’t commit it.

• PythonAnywhere or server: add .env directly on the server (not in Git).

• Optional: For advanced setups, use environment variables instead of .env (e.g., set SECRET_KEY in the server’s environment).

---

Let me know if you'd like a script to automatically read .env or help with setting this up on PythonAnywhere.

 

5. follow-up questions 3

Where should I put .gitignore, ~/django_projects/, ~/django_projects/mysite/, or ~/django_projects/mysite/mysite/?  settings.py is placed in ~/django_projects/mysite/mysite/.  Many apps are placed in ~/django_projects/mysite/.  ~/django_projects/ has only the folder of mysite.

 

Thanks for the clear structure—this helps a lot. Given your setup:

~/django_projects/

          └── mysite/

                      ├── mysite/         ← contains settings.py

                      ├── app1/

                      ├── app2/

                      └── manage.py

 

Here’s the best practice:

---

✅ Put .gitignore in:

~/django_projects/mysite/ (same level as manage.py)

This is the root of your Django project (the Git repository), and it's where you'll run most Git commands like git init, git add, etc.

---

📌 Your .gitignore (placed in ~/django_projects/mysite/) might look like:

 

# Ignore secret settings

.env

 

# Python cache

__pycache__/

*.pyc

 

# Django migrations

*/migrations/__pycache__/

*/migrations/*.pyc

*/migrations/*.py

 

# VSCode settings or other editor junk

.vscode/

*.swp

 

# Database files

*.sqlite3

 

# Media/static (if needed)

media/

staticfiles/

 

✅ Also:

• You should run git init in ~/django_projects/mysite/ — that will make it your repo root.

• Keep .env in that same folder (~/django_projects/mysite/) and load it from there in settings.py.

 

Let me know if you’d like help modifying your settings.py to read from .env!

 

6. follow-up questions 4

Where should I put .env?  I put it in ~/django_projects/mysite/mysite/, where settings.py is placed.  But should I move it up to ~/django_projects/mysite/, where manage.py, db.sqlite3, and many other apps are placed.

 

Great question — and you're right to think carefully about .env placement.

---

✅ Best Practice: Place .env in

~/django_projects/mysite/

This is the project root — where manage.py lives and where you typically run your Django commands (python manage.py runserver, migrate, etc.).

---

Why?

1. Security: Keeps sensitive configs out of the app directory itself.

2. Convenience: python-dotenv and many tools (like django-environ) expect .env to be near manage.py.

3. Cleaner Structure: Keeps mysite/mysite/settings.py focused on code, not on config storage.

---

✅ How to Load .env in settings.py

In ~/django_projects/mysite/mysite/settings.py, near the top, add:

import os

from dotenv import load_dotenv

from pathlib import Path

 

# Base directory of your project (where manage.py is)

BASE_DIR = Path(__file__).resolve().parent.parent

 

# Load environment variables from .env file at BASE_DIR

load_dotenv(BASE_DIR / '.env')

 

# Now you can use:

SECRET_KEY = os.getenv("SECRET_KEY")

 

Summary:

 

Let me know if you want help editing the .env or your settings.py.

 

7. follow-up questions 5

Should I put database files and static files in .gitignore?

 

Yes — you should put database files and static files in your .gitignore. Here's why:

---

✅ 1. Database Files (*.sqlite3)

• Reason: These are generated and change frequently. You don’t want to version control test/dev data or risk leaking production data.

• Add to .gitignore:

  db.sqlite3

  *.sqlite3

---

✅ 2. Static Files (collected)

• If you're using collectstatic, the contents of the STATIC_ROOT directory should not be tracked by Git.

• Reason: These files are generated from your app's static folders, so they can be reproduced on deployment.

• Example:
  If your settings.py has:

  python

  STATIC_ROOT = BASE_DIR / 'staticfiles'

  Then add:

  staticfiles/

---

📝 You Should Keep:

• App static files like myapp/static/myapp/styles.css — these are part of your source.

---

✅ Sample .gitignore additions:

 

Let me know if you're using media uploads too — that needs a similar rule.

 

8. follow-up questions 6

What happens if I create two or more .env files for one project?  

 

Good question! Here's what happens when you create multiple .env files in a single Django project:

---

🚫 By default, only one .env file is loaded — the one you explicitly tell Django (via python-dotenv or django-environ) to load in your settings.py.

Example (in settings.py):

So if you have:

Only the one loaded via load_dotenv(...) is read — the other is ignored unless you explicitly load it again.

---

✅ Can you load multiple .env files?

Yes, you can, by calling load_dotenv() more than once:

• Later-loaded variables can override earlier ones if they define the same keys.

---

⚠️ But be careful:

• It’s usually not recommended to have multiple .env files active in the same environment, unless:

  • You want to separate secrets from configs

  • Or you're using different .env files for different environments (e.g., .env.development, .env.production)

---

✅ Best Practice:

Stick to one .env file per environment (development, production, staging).
Name them clearly if you use multiple:

Then modify your settings.py like this:

---

 

Let me know if you'd like help setting this up for a multi-environment deployment!

 

9. follow-up questions 7

 

You said:

echo "*.pyc" >> .gitignore

echo "__pycache__/" >> .gitignore

Does *.pyc mean that every *.pyc file in each app is ignored?  Also, all the __pycache__ files in all apps are ignored?  One more question: what does / in __pycache__/ mean?

 

Great questions! Let's break them down clearly:

---

✅ What does *.pyc in .gitignore mean?

*.pyc tells Git to ignore all files ending in .pyc, no matter where they are in the project.

• So app1/utils.pyc, myproject/manage.pyc, or any file.pyc will be ignored.

• .pyc files are compiled Python files — Git doesn't need them.

---

✅ What about __pycache__/?

__pycache__/ tells Git to ignore all __pycache__ directories and their contents, anywhere in your project.

• Every time you run Python code, Python may create a __pycache__/ directory to store optimized .pyc files.

• This line ensures Git skips those entire directories.

---

✅ What does the / mean in __pycache__/?

• The / means you're ignoring a directory, not a file.

• If you just wrote __pycache__, it would ignore both files and folders with that name.

• But __pycache__/ is clearer: ignore any folder named __pycache__ and everything inside it.

---

📌 Summary

 

Let me know if you’d like a full .gitignore template for Django or Python projects!

 

10. follow-up questions 8

You said:

cd ~/django_projects

git init

git remote add origin https://github.com/yourusername/your-repo.git

git add .

git commit -m "Initial commit"

git push -u origin master # or 'main' if your default branch is 'main'

By the way, all my apps and other files such as manage.py, .env and .gitignore are placed in ~/django_projects/mysite/.  The file of settings.py is in ~/django_projects/mysite/mysite/.  Is it okay to do git init at the level of ~/django_projects/, not at ~/django_projects/mysite/?  There are no other files or folders than mysite, and I prefer to push the "django_project" folder itself.

 

Yes — based on your setup and your goal of pushing the entire django_projects folder, it's absolutely fine to run git init at:

---

✅ Why it's okay:

• You said ~/django_projects/ contains only one folder: mysite/, which itself contains your full Django project (with manage.py, settings.py, .env, .gitignore, etc.).

• So initializing Git at ~/django_projects/ means you're tracking the whole mysite/ folder under version control.

• When you push it to GitHub, your GitHub repo will contain a folder named mysite/ with your whole Django project inside.

---

🛡️ Just be careful of sensitive files:

Make sure your .gitignore includes lines like:

These help you avoid accidentally committing:

• Your .env file (with secrets)

• Your virtual environment

• Python cache files

• Your development database

---

🔁 Summary:

So either way is okay — but since you want to push the whole django_projects folder, initialize Git at ~/django_projects/.

 

Let me know if you want help writing your .gitignore!

 

11. follow-up questions 9

Which do you think is better, running Git commands at ~/django_projects/ or running Git commands at ~/django_projects/msite/?

 

Great question — here's a clear comparison to help you decide:

---

✅ Option 1: Git in ~/django_projects/

Pros:

• You track the whole folder, including mysite/.

• Useful if you plan to:

  • Add multiple Django projects under ~/django_projects/ in the future.

  • Include project-wide setup scripts, documentation, or shared resources outside mysite/.

Cons:

• Slightly more cluttered repo if ~/django_projects/ ever includes other unrelated folders.

---

✅ Option 2: Git in ~/django_projects/mysite/

Pros:

• Your Git repo is clean and focused only on the actual Django project (manage.py, apps, settings, etc.).

• Easier to manage .env, .gitignore, etc., when they're in the same place as your main code.

• Best practice when each Django project is a standalone Git repository.

Cons:

• You won’t be tracking anything above mysite/, like setup notes in ~/django_projects/ itself (if you have any).

---

✅ Recommendation

If you're only planning to work on one Django project, or want a cleaner, more focused Git repo, go with:

👉 Git inside ~/django_projects/mysite/

But if you're treating ~/django_projects/ like a workspace for multiple projects and want to manage them all from one Git repo, then:

👉 Git in ~/django_projects/ is fine

---

💡 TL;DR

 

Let me know if you’d like help organizing your repo or writing a .gitignore!

 

12. follow-up questions 10

In python, how can I cast a variable into a boolean?

 

To cast a variable into a boolean in Python, you can use the built-in bool() function:

If you're working with string inputs like "True" or "False" and want them to behave like actual booleans, convert like this:

 

Let me know what kind of variable you’re casting and I can give you a more specific example.

 

13. follow-up questions 11

(1)

What is wrong with this code?

ALLOWED_HOSTS = json.loads(os.getenv("ALLOWED_HOSTS"))

 

import os

import json

 

# This works if ALLOWED_HOSTS is a valid JSON string, e.g., '["example.com", "127.0.0.1"]'

ALLOWED_HOSTS = json.loads(os.getenv("ALLOWED_HOSTS"))

 

Your line is correct only if the environment variable ALLOWED_HOSTS is a valid JSON string. Common mistakes include:

✅ Correct Usage (in .env):

❌ Incorrect Usage:

✅ Solution if you want to allow comma-separated values:

But this approach doesn’t handle spaces or malformed input. You can clean it:

 

Let me know which style you prefer, and I can adjust accordingly.

 

(2)

Is this a valid json?   "['*']"

 

No, "['*']" is not valid JSON.

Why?

In JSON:

• Double quotes " must be used for strings and keys.

• Single quotes ' are not allowed for strings.

So, this is valid JSON:

You should put that in your .env file like this:

Then load it in Python with:

 

Let me know if you want to allow multiple hosts.