`yotta target` fails with `error: 'RegistryThingVersion' object has no attribute 'truncate'` about yotta HOT 12 CLOSED

Got it working by adding the following method to class Version defined in yotta/lib/version.py:

    def truncate(self, level):
        return self.version.truncate(level)

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It's likely the python version is too new

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Thanks for the suggestion. I tried 3.6.9, 3.5.7. and 3.4.10 but unfortunately I get the same error.

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Hi, I am experiencing the exact same issue. Just wondering if there are any more details I can provide to try and help with this. I have tried with python 3.8, 3.7, 3.6, 3.5 and 3.3 as well as 2.7. Any updates would be much appreciated.

My log is attached:

log-github.txt

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Any idea when this issue started to occur?

Is it something recent?

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I'm afraid I don't know. It's my first time using yotta.

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Hi,
The cause of the issue is a call to truncate in semantic_version/base.py. The variable version points to an instance of class yotta.lib.registry_access.RegistryThingVersion which has no truncate method defined:

> /home/build/.local/lib/python3.7/site-packages/semantic_version/base.py(894)match()
-> version = version.truncate('prerelease')
(Pdb) l
889  	        self.build_policy = self.BUILD_STRICT if target.build else build_policy
890  	
891  	    def match(self, version):
892  	        if self.build_policy != self.BUILD_STRICT:
893  	            import pdb; pdb.set_trace()
894  ->	            version = version.truncate('prerelease')
895  	
896  	        if version.prerelease:
897  	            same_patch = self.target.truncate() == version.truncate()
898  	
899  	            if self.prerelease_policy == self.PRERELEASE_SAMEPATCH and not same_patch:
(Pdb) interact
*interactive*
>>> version
[email protected] from the public module registry
>>> type(version)
<class 'yotta.lib.registry_access.RegistryThingVersion'>
>>> 
now exiting InteractiveConsole...
(Pdb) n
AttributeError: 'RegistryThingVersion' object has no attribute 'truncate'

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@psch2 great work, please open a PR and we can check all tests are still good.

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@thegecko Would it be possible to get a new release to include 047cff2? I am a new user, just installed 0.19.0, and I'm affected by that bug. Thanks!

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I've released a newer version to TestPyPI:

https://test.pypi.org/project/yotta/

Could you try it out and confirm it fixes this issue?

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@thegecko It did, thanks!

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OK, thanks.

I've released v0.20.0

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