Can't import pychromecast 0.6.4 on Python 2.7.9

[bowans]

In my test, Python 3.4.3 works fine.
But fail to import on Python 2.7.9.

Install pychromecast through pip install pychromecast
pip list -> pychromecast (0.6.4)

Python 2.7.9 (default, Dec 10 2014, 12:24:55) [MSC v.1500 32 bit (Intel)] on win
32
Type "help", "copyright", "credits" or "license" for more information.
>>> import pychromecast
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python27\lib\site-packages\pychromecast\__init__.py", line 11, in <mo
dule>
    from . import socket_client
  File "C:\Python27\lib\site-packages\pychromecast\socket_client.py", line 20, i
n <module>
    from . import cast_channel_pb2
  File "C:\Python27\lib\site-packages\pychromecast\cast_channel_pb2.py", line 23
, in <module>
    serialized_pb=_b('\n\x12\x63\x61st_channel.proto\x12 extensions.core_api.cas
t_channel\"\xed\x02\n\x0b\x43\x61stMessage\x12W\n\x10protocol_version\x18\x01 \x
02(\x0e\x32=.extensions.core_api.cast_channel.CastMessage.ProtocolVersion\x12\x1
1\n\tsource_id\x18\x02 \x02(\t\x12\x16\n\x0e\x64\x65stination_id\x18\x03 \x02(\t
\x12\x11\n\tnamespace\x18\x04 \x02(\t\x12O\n\x0cpayload_type\x18\x05 \x02(\x0e\x
32\x39.extensions.core_api.cast_channel.CastMessage.PayloadType\x12\x14\n\x0cpay
load_utf8\x18\x06 \x01(\t\x12\x16\n\x0epayload_binary\x18\x07 \x01(\x0c\"!\n\x0f
ProtocolVersion\x12\x0e\n\nCASTV2_1_0\x10\x00\"%\n\x0bPayloadType\x12\n\n\x06STR
ING\x10\x00\x12\n\n\x06\x42INARY\x10\x01\"s\n\rAuthChallenge\x12\x62\n\x13signat
ure_algorithm\x18\x01 \x01(\x0e\x32\x34.extensions.core_api.cast_channel.Signatu
reAlgorithm:\x0fRSASSA_PKCS1v15\"\xc8\x01\n\x0c\x41uthResponse\x12\x11\n\tsignat
ure\x18\x01 \x02(\x0c\x12\x1f\n\x17\x63lient_auth_certificate\x18\x02 \x02(\x0c\
x12 \n\x18intermediate_certificate\x18\x03 \x03(\x0c\x12\x62\n\x13signature_algo
rithm\x18\x04 \x01(\x0e\x32\x34.extensions.core_api.cast_channel.SignatureAlgori
thm:\x0fRSASSA_PKCS1v15\"\xa8\x01\n\tAuthError\x12I\n\nerror_type\x18\x01 \x02(\
x0e\x32\x35.extensions.core_api.cast_channel.AuthError.ErrorType\"P\n\tErrorType
\x12\x12\n\x0eINTERNAL_ERROR\x10\x00\x12\n\n\x06NO_TLS\x10\x01\x12#\n\x1fSIGNATU
RE_ALGORITHM_UNAVAILABLE\x10\x02\"\xd5\x01\n\x11\x44\x65viceAuthMessage\x12\x42\
n\tchallenge\x18\x01 \x01(\x0b\x32/.extensions.core_api.cast_channel.AuthChallen
ge\x12@\n\x08response\x18\x02 \x01(\x0b\x32..extensions.core_api.cast_channel.Au
thResponse\x12:\n\x05\x65rror\x18\x03 \x01(\x0b\x32+.extensions.core_api.cast_ch
annel.AuthError*J\n\x12SignatureAlgorithm\x12\x0f\n\x0bUNSPECIFIED\x10\x00\x12\x
13\n\x0fRSASSA_PKCS1v15\x10\x01\x12\x0e\n\nRSASSA_PSS\x10\x02\x42\x02H\x03')
TypeError: __init__() got an unexpected keyword argument 'syntax'
>>>

[c-steindl]

+1 from me. I also get Requested protobuf>=3.0.0a2 (from pychromecast), but installing version 3.0.0a1 during installation via pip. Looks like there is no member variable syntax in protobof class class FileDescriptor(DescriptorBase): in that version.

[balloob]

@Steindi01, you're on the right track there. I think it has to do with the protobuf version. I have just pushed a new version 0.6.4.1 that depends on the recently released protobuf version 3.0.0a3.

Importing PyChromecast on Python 2 works for me with that version.

[bowans]

Hi @balloob,
pychromecast 0.6.4.1 still fails for me, but I find some clues about pip.

Install formal Python 2.7.9 from Python 2.7.9 Windows x86 MSI installer .
The installation may default to install pip (1.5.6).
pip install -r requirement.txt will get protobuf (3.0.0-alpha-1) at this time.

But if upgrade pip to pip (7.0.3) via pip install --upgrade pip.
pip install -r requirement.txt will install correct protobuf (3.0.0a3).

If using pip (7.0.3) for pip install pychromecast, importing pychromecast will be OK.

[balloob]

Okay, that is weird. For now, I'll add a note to the README with your workaround.

[chrisgilmerproj]

Just a hint here, when using the python shell python at version 2.7.10 it works fine. If I use ipython instead at version 1.1.0 it didn't work at all. Upgrading ipython to version 3.1.0 (I was really behind here) seemed to resolve this issue for me.

[skorokithakis]

I got the same issue, upgraded pip and installed from master and it was solved. I'm not sure why, but it was.

[skorokithakis]

Can confirm this also works fine with pip 8 and Python 2.7.

[manatlan]

I confirm : it works better with a up-to-date pip

[clach04]

Stumbled across #130 and #47. Ended up sticking with Python3 (was simply testing Python 2.7) but did see https://github.com/skorokithakis/catt which documents that catt version 0.5.6 has python 2 support in case anyone really needs Python 2.7 support.

[emontnemery]

Pychromecast is Python 3 only since quite some time