Nested list requires 4 spaces instead of 2

[davidshen84]

Most common Markdown editor uses 2 spaces as the indentation for nested list. But this library requires 4, and there's no way to configure this value.

Ex:

• level 1
  • level 2

Would it be possible to change the nested list indentation to 2, or add a configuration value?

[waylan]

The documentation clearly states:

• Indentation/Tab Length

  The syntax rules clearly state that when a list item consists of multiple paragraphs, "each subsequent paragraph in a list item must be indented by either 4 spaces or one tab" (emphasis added). However, many implementations do not enforce this rule and allow less than 4 spaces of indentation. The implementers of Python-Markdown consider it a bug to not enforce this rule.

  This applies to any block level elements nested in a list, including paragraphs, sub-lists, blockquotes, code blocks, etc. They must always be indented by at least four spaces (or one tab) for each level of nesting.

  In the event that one would prefer different behavior, tab_length can be set to whatever length is desired. Be warned however, as this will affect indentation for all aspects of the syntax (including root level code blocks).

Of course, if you would like different behavior, you are free to create your own extension which does whatever you want. I, however, have no interest in implementing a bug just to "match" other implementations.