traceback while running getting started example

[martinakos]

Hi,

I'm getting a traceback while running getting started example in http://packages.python.org/algopy/

the output is:

jacobian =  [ 135.42768462   41.08553692   15.        ]

gradient = [array([ 135.42768462,   41.08553692,   15.        ])]

Jacobian =

Traceback (most recent call last):

  File "AlgoPy_test.py", line 28, in <module>

    print 'Jacobian =', cg.jacobian([[3.,5,7]])

  File "C:\Python27\lib\site-packages\algopy\tracer\tracer.py", line 262, in jacobian

    self.pushforward(utpm_x_list)

  File "C:\Python27\lib\site-packages\algopy\tracer\tracer.py", line 103, in pushforward

    f.__class__.pushforward(f.func, f.args, Fout = f)

  File "C:\Python27\lib\site-packages\algopy\tracer\tracer.py", line 637, in pushforward

    out  = func(*args)

  File "C:\Python27\lib\site-packages\algopy\utpm\utpm.py", line 73, in __getitem__

    tmp = self.data.__getitem__((slice(None),slice(None)) + tuple(sl))

IndexError: invalid index

I'm using Python 2.7.3 and Numpy 1.6.2 and I have tried the example with algopy 0.3.1 and 0.3.1.dev, I get this error with both.

Any idea what's wrong?

Cheers

Martin 

[Sebastian Walter]

Hello Martin,

thanks of the bug report.

Can you download a fresh copy from https://github.com/b45ch1/algopy
and confirm that the getting started example works now?

cheers,
Sebastian

[martinakos]

Hi Sebastian

I removed a pair of square brackets from the line

print 'Jacobian =', cg.jacobian([[3.,5,7]])

and now it works. I assume that's the problem?

I've tried the fresh copy from github at it's the same, I have to remove the extra pair of brackets for it to work

cheers

Martin