Log Message:
py-protobuf: updated to 3.8.0

Protocol Buffers v3.8.0
Python
Changes implementation of Name() for enums that allow aliases in proto2 in \ 
Python to be in line with claims in C++ implementation (to return first value).
Added double_format option in text format printer.
Added iter and contains to extension dict
Added allow_unknown_field option in python text format parser
Fixed Timestamp.ToDatetime() loses precision issue
Support unknown field in text format printer.
Float field will be convert to inf if bigger than struct.unpack('f', \ 
b'\xff\xff\x7f\x7f')[0] which is about 3.4028234664e+38,
convert to -inf if smaller than -3.4028234664e+38
Allowed casting str->bytes in Message.setstate