justbytes._util.generators module

Special purpose generators.

justbytes._util.generators.next_or_last(pred, seq, default=None)

Return the first element that matches the predicate or the last element in the seq.

If seq is empty, return default.

Parameters:

• pred (bool) – a predicate, return False if the value is not satisfactory
• seq – a sequence of values
• default – returned if seq is empty, default is None

justbytes._util.generators.takeuntil(pred, seq)

Like next(), but yields all values until the first matching value.

Parameters:

• pred (bool) – a predicate, return False if the value is not satisfactory
• seq – a sequence of values