Hi, The repr - eval pair does not work with numpy. You can simply do a tofile() from file().
Matthieu 2008/12/8 Lou Pecora <[EMAIL PROTECTED]>: > In looking for simple ways to read and write data (in a text readable format) > to and from a file and later restoring the actual data when reading back in, > I've found that numpy arrays don't seem to play well with repr and eval. > > E.g. to write some data (mixed types) to a file I can do this (fp is an open > file), > > thedata=[3.0,-4.9+2.0j,'another string'] > repvars= repr(thedata)+"\n" > fp.write(repvars) > > Then to read it back and restore the data each to its original type, > > strvars= fp.readline() > sonofdata= eval(strvars) > > which gives back the original data list. > > BUT when I try this with numpy arrays in the data list I find that repr of an > array adds extra end-of-lines and that messes up the simple restoration of > the data using eval. > > Am I missing something simple? I know I've seen people recommend ways to > save arrays to files, but I'm wondering what is the most straight-forward? I > really like the simple, pythonic approach of the repr - eval pairing. > > Thanks for any advice. (yes, I am googling, too) > > > -- Lou Pecora, my views are my own. > > > > > _______________________________________________ > Numpy-discussion mailing list > [email protected] > http://projects.scipy.org/mailman/listinfo/numpy-discussion > -- Information System Engineer, Ph.D. Website: http://matthieu-brucher.developpez.com/ Blogs: http://matt.eifelle.com and http://blog.developpez.com/?blog=92 LinkedIn: http://www.linkedin.com/in/matthieubrucher _______________________________________________ Numpy-discussion mailing list [email protected] http://projects.scipy.org/mailman/listinfo/numpy-discussion
