open source projects that are less than ten thousand line

Open source projects are not listed by number of code lines.

In fact "lines of code" has been depreciated as a metric for years, particularly for high level languages where coding style alone can have a massive affect on code lines count. Do:

if (condition)
   {
   statement;
   }
else
   {
   statement;
   }

And:

if (condition) statement;
else statement;

Have the same number of lines of code?
Even if they do, the size of the code is not a measure of it's quality!

Look for a project that has a relevant, or interesting subject - or better still get a book and work your way through it if you are trying to learn the language. Learning from random code is a bad way to do it - you miss far too many basics.