What is this message when installing Pybrain

Question

I checked out the latest version of Pybrain from github

Running sudo python setup.py install on my mac gives me:

Extracting PyBrain-0.3.1-py2.7.egg to /Library/Python/2.7/site-packages
  File "/Library/Python/2.7/site-packages/PyBrain-0.3.1-py2.7.egg/build/lib/build/lib/pybrain/optimization/distributionbased/fem.py", line 235
    updateSize = self._computeUpdateSize(self._computeDensities(sample), k)
             ^
SyntaxError: invalid syntax

  File "/Library/Python/2.7/site-packages/PyBrain-0.3.1-py2.7.egg/build/lib/pybrain/optimization/distributionbased/fem.py", line 235
    updateSize = self._computeUpdateSize(self._computeDensities(sample), k)
             ^
SyntaxError: invalid syntax

  File "/Library/Python/2.7/site-packages/PyBrain-0.3.1-py2.7.egg/pybrain/optimization/distributionbased/fem.py", line 235
    updateSize = self._computeUpdateSize(self._computeDensities(sample), k)
             ^
SyntaxError: invalid syntax

What is this; should I worry about it?

score 0 · Answer 1 · answered Apr 08 '14 at 09:15

0

It is a syntax error so you should at least raise a ticket on it and possibly resolve it and submit a patch. It looks like fem at least will not work but the error may be on line 234 as there is nothing obviously wrong with the reported line.

answered Apr 08 '14 at 09:15

Steve Barnes

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score 0 · Accepted Answer · answered Apr 08 '14 at 09:28

0

The problem is in line 233, which is:

print(len(self.allsamples), min(self.fitnesses), max(self.fitnesses)#, self.alphas)

it comments out the self.alphas part, but it is also commenting out the closing parenthesis of the print function, so the error occurs.

I'll submit a pull request, meanwhile, you can fix it yourself by fixing the parenthesis.

answered Apr 08 '14 at 09:28

adrin

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Is this the right path in the repo: `./pybrain/optimization/distributionbased/fem.py`? – Tjorriemorrie Apr 08 '14 at 09:49
Yes, if `.` is your module's root. – adrin Apr 08 '14 at 09:50
Actually, why are there three paths? Are they not all the same? – Tjorriemorrie Apr 08 '14 at 09:53
They're the same file, but it's kinda continuing the process and encounters the same error over and over. – adrin Apr 08 '14 at 09:54
Thanks for your help, I'll try to fix these on the repo as I see it. I didn't realise this library would be in such a bad state. – Tjorriemorrie Apr 08 '14 at 10:00
I fixed the error, ran `python setup.py bdist_egg` and installed it again, but the error persists; what am I doing wrong? – Tjorriemorrie Apr 08 '14 at 10:20
nvm, i needed to delete the build & dist dirs – Tjorriemorrie Apr 08 '14 at 10:29

What is this message when installing Pybrain

2 Answers2