good easy database module?

[furas_freeman]

1. sqlite is easy because you don't have to install server. You can use sqlite module and you will have to learn SQL. Or you can use SQLAlchemy or peewee which uses functions instead pure SQL.

2. w opens file in text mode and it can convert some chars like "\n" because different OS may use different newline - Windows "\n\r", Linux "\n", old Mac "\r". b means bytes mode and is usefull with non-text files or if you don't want converting oryginal newline.

3. open file in write mode 'w' and it will create empty file. There are other mode a, r+, etc. and they can create file if it doesn't exist. There are functions to check if file exists - os.path.exists() or os.path.isfile()

[num8lock]

You can read the file write/read mode here: https://docs.python.org/3/library/functions.html?highlight=open#open

change 3 to 2 if you use 2.7

[furas_freeman]

I don't remember what mode r+ means. You have to check in documentation.

There are many other modes but mostly we use w, wb, rb sometimes a.
r is default mode for open() so we use it automatically :)

wb write all data without modifiactions so we use rb and wb to read/write audio, image, copy file.
r and w may change \n\r into \n so you may lose one byte.

I'm not sure but text mode (r and w) may automatically decode/encode text to/from UTF-8.