try: x,y=np.loadtxt(f3,unpack=True)
without the str().
On Fri, May 20, 2011 at 11:20 PM, uxv2g <amb...@cornell.edu> wrote:
>
> So, I installed EPD python for mac. From the terminal I go into a directory
> where the file I'd like to read exists. In a python program I create a 2
> column data array and below I open it as "f3". The line in bold is that
> referenced in the error. fwiw I'm just trying to do an easy x,y plot and
> this is my first python attempt.
> ....
> f3=open(sys.argv[1]+ext, 'r')
>
> import matplotlib.pyplot as plt
> import numpy as np
>
> x,y=np.loadtxt(str(f3),unpack=True)
>
> plotfile='sys.argv[1].png'
> plt.plot(x,y)
> plt.xtitle('step number')
> plt.ytitle('energy')
> plt.grid("off")
> plt.output(plotfile,'png medium transparent picsize 600 400')
> f3.close()
> ....
> ***error below&***
> File "SCFscript.py", line 40, in <module>
> x,y=np.loadtxt(str(f3),unpack=True)
> File
> "/Library/Frameworks/Python.framework/Versions/7.0/lib/python2.7/site-packages/numpy/lib/npyio.py",
> line 635, in loadtxt
> fh = open(fname, 'U')
> IOError: [Errno 2] No such file or directory: "<open file 'gq_1014.log.hy',
> mode 'r' at 0x2a93e8>"
>
> *****
> The file exists, I checked. Where is it looking? In the python framework
> directory above? Shouldn't it be opening the file from the current
> directory? Am I missing something here?
>
> Thanks for any help!!
>
>
> --
> View this message in context:
> http://old.nabble.com/numpy.loadtxt-is-not-finding-an-existing-file.-What%27s-up--tp31668985p31668985.html
> Sent from the matplotlib - users mailing list archive at Nabble.com.
>
>
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What Every C/C++ and Fortran developer Should Know!
Read this article and learn how Intel has extended the reach of its
next-generation tools to help Windows* and Linux* C/C++ and Fortran
developers boost performance applications - including clusters.
http://p.sf.net/sfu/intel-dev2devmay
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