python - Running an external script with matplotlib commands in Ipython -

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i run weird problem. way writing code, first write functions on fly in ipython qt console interactively, , tweak them necessary. once satisfied results, move them py file, use functions @ later time.

so, wrote function supposed plot histogram on screen. if first run py script, call function required arguments, error message, @ bottom of post. if copy , paste function code qt console, , hit enter, function works fine after point.

why function work fine after copy paste qt console, not work if directly call after running script %run script.py magic?

thanks ideas!

here function:

def plotfreqhist(w_hist_list, head, span, m):     '''     generates frequency distribution plot     '''     if head == 30.:         tr_cond = 'normal'     else:         tr_cond = 'congested'      histweights = np.zeros_like(w_hist_list[0]) + 1. / w_hist_list[0].size * 100     bmap = brewer2mpl.get_map('rdylbu', 'diverging', 10)     colors = bmap.mpl_colors     mpl.rcparams['axes.color_cycle'] = colors     fig = plt.figure(figsize=(12,8))     ax = axes()     plt.xlim(0.0,1.2)     plt.ylim(0.0,6)     plt.xlabel('uniform load [kips/ft]')     plt.ylabel('frequency [%]')     plt.title('frequency distribution\n number of simulations = %i     span length = %.0fft     traffic condition = %s' %(m, span, tr_cond))     ax.xaxis.set_major_locator(multiplelocator(0.1))     ax.xaxis.set_minor_locator(multiplelocator(0.02))     ax.yaxis.set_major_locator(multiplelocator(1.0))     ax.yaxis.set_minor_locator(multiplelocator(0.2))     plt.grid(b=true, which='major', linewidth=1.0)     plt.grid(b=true, which='minor')      in xrange(len(w_hist_list)):         hist(w_hist_list[i], bins = 200, range = (0,2), normed = 0, cumulative = 0, histtype = charttype, linewidth=2.0, alpha =0.5, weights = histweights)      plt.show()

and here error message:

traceback (most recent call last):   file "c:\python27\lib\site-packages\ipython\core\ultratb.py", line 779, in structured_traceback     records = _fixed_getinnerframes(etb, context, tb_offset)   file "c:\python27\lib\site-packages\ipython\core\ultratb.py", line 245, in _fixed_getinnerframes     records  = fix_frame_records_filenames(inspect.getinnerframes(etb, context))   file "c:\python27\lib\inspect.py", line 1043, in getinnerframes     framelist.append((tb.tb_frame,) + getframeinfo(tb, context))   file "c:\python27\lib\inspect.py", line 1007, in getframeinfo     lines, lnum = findsource(frame)   file "c:\python27\lib\inspect.py", line 580, in findsource     if pat.match(lines[lnum]): break indexerror: list index out of range error: internal python error in inspect module. below traceback internal error.  unfortunately, original traceback can not constructed.


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