Python: adds ZRANGE command

[shohamazon]

Issue #, if available:

Description of changes:

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[shachlanAmazon]

please align tests with #910

[barshaul]

minor: missing a period at the end

[barshaul]

As we decided on the last meeting - lets not document in the client all of the edge cases that the server is responsible for, so we won't need to change our documentation if they change their implementation. Users can go to the shared zrange link to find more info.

[barshaul]

an error is raised.

[shohamazon]

We need to remove it anyway

[barshaul]

lets skip the non existing key example and instead have a more complex example that gives more information, for example RangeByScore with InfBound.Negative, ScoreBoundary(3), limit=2

[barshaul]

I think it would be more readable if you do:

args = [key, str(range_query.start), str(range_query.stop)]
if reverse:
    args.append("REV")
if isinstance(range_query, RangeByScore):
    args.append("BYSCORE")
elif isinstance(range_query, RangeByLex):
    args.append("BYLEX")

if hasattr(range_query, 'limit') and range_query.limit is not None:
   args.extend(
                    [
                        "LIMIT",
                        str(range_query.limit.offset),
                        str(range_query.limit.count),
                    ]
                )

[barshaul]

same

[shohamazon]

@barshaul ready

[barshaul]

If +inf is only used with score, change default_arg to score_arg

[barshaul]

Have you checked if this API is possible in nodeJS, Java? (having one enum with two potential arg values)

[barshaul]

If it isn't, we might better choosing your prev solution

[barshaul]

Lets not use a negative if, e.g.:

score_min = min_score["score_arg"] if type(min_score) == InfBound else min_score.value

[barshaul]

same as above

[barshaul]

Why we don't have a comment explaining this example output? if it's too complicated, simplify the example

[barshaul]

WTHISCORE -> WITHSCORE

[barshaul]

Map -> Mapping

[barshaul]

same

[barshaul]

Lets refer to the Limit class for more info, try to find python docstring way of doing it (maybe https://stackoverflow.com/questions/21289806/link-to-class-method-in-python-docstring)

[barshaul]

see Limit class for more information.