WARNING: Automatic signature extraction failed: Traceback (most recent call last):

 "/usr/lib/python3.4/site-packages/youtube_dl/extractor/youtube.py", line 881, in _decrypt_signature
return func(s)

 "/usr/lib/python3.4/site-packages/youtube_dl/extractor/youtube.py", line 449, in <lambda>
return lambda s: initial_function([s])

 "/usr/lib/python3.4/site-packages/youtube_dl/jsinterp.py", line 113, in resf
res = self.interpret_statement(stmt, local_vars)

 "/usr/lib/python3.4/site-packages/youtube_dl/jsinterp.py", line 43, in interpret_statement
'Cannot determine left side of statement in %r' % stmt)youtube_dl.utils.ExtractorError: Cannot determine left side of statement in 'xh(this.j,a)'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type
youtube-dl -U
to update.
Traceback (most recent call last):


 "examples/myexample.py", line 195, in <module>

trace = pm.sample(1500, tune=1000, chains=1, init='adapt_diag')


 "/Users/Yannis/.pyenv/versions/mini-project/lib/python3.6/site-packages/pymc3/sampling.py", line 457, in sample

trace = _sample_many(**sample_args)


 "/Users/Yannis/.pyenv/versions/mini-project/lib/python3.6/site-packages/pymc3/sampling.py", line 503, in _sample_many

step=step, random_seed=random_seed[i], **kwargs)


 "/Users/Yannis/.pyenv/versions/mini-project/lib/python3.6/site-packages/pymc3/sampling.py", line 544, in _sample

for it, strace in enumerate(sampling):


 "/Users/Yannis/.pyenv/versions/mini-project/lib/python3.6/site-packages/tqdm/std.py", line 1091, in __iter__

for obj in iterable:


 "/Users/Yannis/.pyenv/versions/mini-project/lib/python3.6/site-packages/pymc3/sampling.py", line 633, in _iter_sample

point, states = step.step(point)


 "/Users/Yannis/.pyenv/versions/mini-project/lib/python3.6/site-packages/pymc3/step_methods/arraystep.py", line 247, in step

apoint, stats = self.astep(array)


 "/Users/Yannis/.pyenv/versions/mini-project/lib/python3.6/site-packages/pymc3/step_methods/hmc/base_hmc.py", line 144, in astep

raise SamplingError("Bad initial energy")
pymc3.exceptions.SamplingError: Bad initial energy
