Python ParseFromString always returns None

[jsia]

Hi,

I created a proto file and did something like this

data = test_pb2.Payload()
data.id = 1234

output = data.SerializeToString()

print data.ParseFromString(output)

The output is always None

I tried deserializing it in java and it worked , is this a bug?

[Pherl Liu]

+robinson

The ParseFromString() in python now always returns None. Note the MergeFromString() returns the number of bytes read, but there's a TODO to make that always return None. Will may have some ideas about this.

--
You received this message because you are subscribed to the Google Groups "Protocol Buffers" group.
To post to this group, send email to prot...@googlegroups.com.
To unsubscribe from this group, send email to protobuf+u...@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.

[Li Qian]

I posted an answer here:

http://lqian.net/b/why-does-google-protobufs-api-parsefromstring-always-return-none/

In short, you were using the API in a wrong way.

在 2011年5月21日星期六UTC+8下午4时22分27秒，jsia写道：

[Prasanna Kanagasabai]

Thank You Li for the answer !! 

PK

[Nagesh .Allur]

Hi Prasanna how did you solve the problem i am facing same issue

[Nagesh .Allur]

Hi ,

I am facing the same problem ParseFromString returning None ,how to solve this

BR

Nagesh

[chiti...@gmail.com]

Web can`t load , could you please help me about the problem?

Thanks~

在 2013年9月26日星期四 UTC+8下午7:58:41，Li Qian写道：

[Donovon Carter]

Li,

When I attempt to access your site I receive the following error: This program is locked to another domain.

Is it possible you could post your API documentation here?

Many thanks. 

[guttula smash]

For the people of the future: in January 2018 the api was the same as in 2013 and it should be done like this:

#wrong
print data.ParseFromString(output)

#correct
data.ParseFromString(output)
print(data)

Link to the site that doesn't open: https://web.archive.org/web/20151122134246/http://lqian.net/b/why-does-google-protobufs-api-parsefromstring-always-return-none/