From the command line

To access the help method of the script:

user@computer:~$ python -m pydlock -h
usage: __main__.py [-h] [--arguments ARGUMENTS] [--encoding ENCODING]
                   {lock,unlock,python,run} file

positional arguments:
    {lock,unlock,python,run}
    file

optional arguments:
    -h, --help            show this help message and exit
    --arguments ARGUMENTS
    --encoding ENCODING

To encrypt a file, use python -m pydlock lock [file]:

user@computer:~$ cat secret.txt
Shh! It's a secret!

user@computer:~$ python -m pydlock lock secret.txt
Enter password:
Re-enter password:

user@computer:~$ cat secret.txt
gAAAAABeqx971nHtXHi4dJYw8A_m_1mRYT8V2Sy4XPLqdg0t4mp9ooN-aTU1fuPQwEpwnuFiAfbJ6oPaN9IB1gzFT5-Tb4gFXQMw5uQUXDYV2Pvso6E5lXQ=

To decrypt a file, use python -m pydlock unlock [file]:

user@computer:~$ cat secret.txt
gAAAAABeqx971nHtXHi4dJYw8A_m_1mRYT8V2Sy4XPLqdg0t4mp9ooN-aTU1fuPQwEpwnuFiAfbJ6oPaN9IB1gzFT5-Tb4gFXQMw5uQUXDYV2Pvso6E5lXQ=

user@computer:~$ python -m pydlock unlock secret.txt
Enter password:

user@computer:~$ cat secret.txt
Shh! It's a secret!

To run an encrypted Python file, use python -m pydlock python [file]:

user@computer:~$ cat hello_world.py
print("Hello world!")

user@computer:~$ python -m pydlock lock hello_world.py
Enter password:
Re-enter password:

user@computer:~$ cat hello_world.py
gAAAAABeq6fM4Qxm0TB9cGIg6G-uNprWIAyPmuciugNGIvPxudmBgkIWGhlV3Lg7RyMRdUVODRCehxWXnS5zhSm6fDZ0Ct57XYPztYi_9DZHp0sO1rXuyCE=

user@computer:~$ python -m pydlock python hello_world.py
Enter password:
Hello world!

user@computer:~$ cat hello_world.py
gAAAAABeq6fM4Qxm0TB9cGIg6G-uNprWIAyPmuciugNGIvPxudmBgkIWGhlV3Lg7RyMRdUVODRCehxWXnS5zhSm6fDZ0Ct57XYPztYi_9DZHp0sO1rXuyCE=

In other Python modules

import pydlock

filename = "secret.txt"

with open(filename, "w+") as file:

    print("Shh! It's a secret!", file = file)

pydlock.lock(filename)

Copyright

Pydlock - A Python file encryption tool.

Copyright (c) 2020 of Erick Edward Shepherd, all rights reserved.

License

MIT License

Copyright (c) 2020 Erick Edward Shepherd

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.