.. _tests-backend_driver: tests example code: backend_driver.py ===================================== [`source code `_] :: from __future__ import print_function, division """ This is used to drive many of the examples across the backends, for regression testing, and comparing backend efficiency. You can specify the backends to be tested either via the --backends switch, which takes a comma-separated list, or as separate arguments, e.g. python backend_driver.py agg ps would test the agg and ps backends. If no arguments are given, a default list of backends will be tested. Interspersed with the backend arguments can be switches for the Python interpreter executing the tests. If entering such arguments causes an option parsing error with the driver script, separate them from driver switches with a --. """ import os import time import sys import glob from optparse import OptionParser import matplotlib.rcsetup as rcsetup from matplotlib.cbook import Bunch, dedent all_backends = list(rcsetup.all_backends) # to leave the original list alone # actual physical directory for each dir dirs = dict(files=os.path.join('..', 'lines_bars_and_markers'), shapes=os.path.join('..', 'shapes_and_collections'), images=os.path.join('..', 'images_contours_and_fields'), pie=os.path.join('..', 'pie_and_polar_charts'), text=os.path.join('..', 'text_labels_and_annotations'), ticks=os.path.join('..', 'ticks_and_spines'), subplots=os.path.join('..', 'subplots_axes_and_figures'), specialty=os.path.join('..', 'specialty_plots'), showcase=os.path.join('..', 'showcase'), pylab=os.path.join('..', 'pylab_examples'), api=os.path.join('..', 'api'), units=os.path.join('..', 'units'), mplot3d=os.path.join('..', 'mplot3d'), colors=os.path.join('..', 'color')) # files in each dir files = dict() files['lines'] = [ 'barh_demo.py', 'fill_demo.py', 'fill_demo_features.py', 'line_demo_dash_control.py', 'line_styles_reference.py', 'scatter_with_legend.py' ] files['shapes'] = [ 'path_patch_demo.py', 'scatter_demo.py', ] files['colors'] = [ 'color_cycle_default.py', 'color_cycle_demo.py', ] files['images'] = [ 'image_demo.py', 'contourf_log.py', ] files['statistics'] = [ 'errorbar_demo.py', 'errorbar_demo_features.py', 'histogram_demo_cumulative.py', 'histogram_demo_features.py', 'histogram_demo_histtypes.py', 'histogram_demo_multihist.py', ] files['pie'] = [ 'pie_demo.py', 'polar_bar_demo.py', 'polar_scatter_demo.py', ] files['text_labels_and_annotations'] = [ 'text_demo_fontdict.py', 'unicode_demo.py', ] files['ticks_and_spines'] = [ 'spines_demo_bounds.py', 'ticklabels_demo_rotation.py', ] files['subplots_axes_and_figures'] = [ 'subplot_demo.py', ] files['showcase'] = [ 'integral_demo.py', ] files['pylab'] = [ 'accented_text.py', 'alignment_test.py', 'annotation_demo.py', 'annotation_demo.py', 'annotation_demo2.py', 'annotation_demo2.py', 'anscombe.py', 'arctest.py', 'arrow_demo.py', 'axes_demo.py', 'axes_props.py', 'axhspan_demo.py', 'axis_equal_demo.py', 'bar_stacked.py', 'barb_demo.py', 'barchart_demo.py', 'barcode_demo.py', 'boxplot_demo.py', 'broken_barh.py', 'cohere_demo.py', 'color_by_yvalue.py', 'color_demo.py', 'colorbar_tick_labelling_demo.py', 'contour_demo.py', 'contour_image.py', 'contour_label_demo.py', 'contourf_demo.py', 'coords_demo.py', 'coords_report.py', 'csd_demo.py', 'cursor_demo.py', 'custom_cmap.py', 'custom_figure_class.py', 'custom_ticker1.py', 'customize_rc.py', 'dashpointlabel.py', 'date_demo_convert.py', 'date_demo_rrule.py', 'date_index_formatter.py', 'dolphin.py', 'ellipse_collection.py', 'ellipse_demo.py', 'ellipse_rotated.py', 'equal_aspect_ratio.py', 'errorbar_limits.py', 'fancyarrow_demo.py', 'fancybox_demo.py', 'fancybox_demo2.py', 'fancytextbox_demo.py', 'figimage_demo.py', 'figlegend_demo.py', 'figure_title.py', 'fill_between_demo.py', 'fill_spiral.py', 'findobj_demo.py', 'fonts_demo.py', 'fonts_demo_kw.py', 'ganged_plots.py', 'geo_demo.py', 'gradient_bar.py', 'griddata_demo.py', 'hatch_demo.py', 'hexbin_demo.py', 'hexbin_demo2.py', 'hist_colormapped.py', 'vline_hline_demo.py', 'image_clip_path.py', 'image_demo.py', 'image_demo2.py', 'image_interp.py', 'image_masked.py', 'image_nonuniform.py', 'image_origin.py', 'image_slices_viewer.py', 'interp_demo.py', 'invert_axes.py', 'layer_images.py', 'legend_demo2.py', 'legend_demo3.py', 'line_collection.py', 'line_collection2.py', 'log_bar.py', 'log_demo.py', 'log_test.py', 'major_minor_demo1.py', 'major_minor_demo2.py', 'manual_axis.py', 'masked_demo.py', 'mathtext_demo.py', 'mathtext_examples.py', 'matshow.py', 'mri_demo.py', 'mri_with_eeg.py', 'multi_image.py', 'multiline.py', 'multiple_figs_demo.py', 'nan_test.py', 'newscalarformatter_demo.py', 'pcolor_demo.py', 'pcolor_log.py', 'pcolor_small.py', 'pie_demo2.py', 'plotfile_demo.py', 'polar_demo.py', 'polar_legend.py', 'psd_demo.py', 'psd_demo2.py', 'psd_demo3.py', 'quadmesh_demo.py', 'quiver_demo.py', 'scatter_custom_symbol.py', 'scatter_demo2.py', 'scatter_masked.py', 'scatter_profile.py', 'scatter_star_poly.py', #'set_and_get.py', 'shared_axis_across_figures.py', 'shared_axis_demo.py', 'simple_plot.py', 'specgram_demo.py', 'spine_placement_demo.py', 'spy_demos.py', 'stem_plot.py', 'step_demo.py', 'stix_fonts_demo.py', 'subplots_adjust.py', 'symlog_demo.py', 'table_demo.py', 'text_handles.py', 'text_rotation.py', 'text_rotation_relative_to_line.py', 'transoffset.py', 'xcorr_demo.py', 'zorder_demo.py', ] files['api'] = [ 'agg_oo.py', 'barchart_demo.py', 'bbox_intersect.py', 'collections_demo.py', 'colorbar_only.py', 'custom_projection_example.py', 'custom_scale_example.py', 'date_demo.py', 'date_index_formatter.py', 'donut_demo.py', 'font_family_rc.py', 'image_zcoord.py', 'joinstyle.py', 'legend_demo.py', 'line_with_text.py', 'logo2.py', 'mathtext_asarray.py', 'patch_collection.py', 'quad_bezier.py', 'scatter_piecharts.py', 'span_regions.py', 'two_scales.py', 'unicode_minus.py', 'watermark_image.py', 'watermark_text.py', ] files['units'] = [ 'annotate_with_units.py', #'artist_tests.py', # broken, fixme 'bar_demo2.py', #'bar_unit_demo.py', # broken, fixme #'ellipse_with_units.py', # broken, fixme 'radian_demo.py', 'units_sample.py', #'units_scatter.py', # broken, fixme ] files['mplot3d'] = [ '2dcollections3d_demo.py', 'bars3d_demo.py', 'contour3d_demo.py', 'contour3d_demo2.py', 'contourf3d_demo.py', 'lines3d_demo.py', 'polys3d_demo.py', 'scatter3d_demo.py', 'surface3d_demo.py', 'surface3d_demo2.py', 'text3d_demo.py', 'wire3d_demo.py', ] # dict from dir to files we know we don't want to test (e.g., examples # not using pyplot, examples requiring user input, animation examples, # examples that may only work in certain environs (usetex examples?), # examples that generate multiple figures excluded = { 'pylab': ['__init__.py', 'toggle_images.py', ], 'units': ['__init__.py', 'date_support.py', ], } def report_missing(dir, flist): 'report the py files in dir that are not in flist' globstr = os.path.join(dir, '*.py') fnames = glob.glob(globstr) pyfiles = set([os.path.split(fullpath)[-1] for fullpath in set(fnames)]) exclude = set(excluded.get(dir, [])) flist = set(flist) missing = list(pyfiles - flist - exclude) missing.sort() if missing: print('%s files not tested: %s' % (dir, ', '.join(missing))) def report_all_missing(directories): for f in directories: report_missing(dirs[f], files[f]) # tests known to fail on a given backend failbackend = dict( svg=('tex_demo.py', ), agg=('hyperlinks.py', ), pdf=('hyperlinks.py', ), ps=('hyperlinks.py', ), ) try: import subprocess def run(arglist): try: ret = subprocess.call(arglist) except KeyboardInterrupt: sys.exit() else: return ret except ImportError: def run(arglist): os.system(' '.join(arglist)) def drive(backend, directories, python=['python'], switches=[]): exclude = failbackend.get(backend, []) # Clear the destination directory for the examples path = backend if os.path.exists(path): import glob for fname in os.listdir(path): os.unlink(os.path.join(path, fname)) else: os.mkdir(backend) failures = [] testcases = [os.path.join(dirs[d], fname) for d in directories for fname in files[d]] for fullpath in testcases: print('\tdriving %-40s' % (fullpath)) sys.stdout.flush() fpath, fname = os.path.split(fullpath) if fname in exclude: print('\tSkipping %s, known to fail on backend: %s' % backend) continue basename, ext = os.path.splitext(fname) outfile = os.path.join(path, basename) tmpfile_name = '_tmp_%s.py' % basename tmpfile = open(tmpfile_name, 'w') future_imports = 'from __future__ import division, print_function' for line in open(fullpath): line_lstrip = line.lstrip() if line_lstrip.startswith("#"): tmpfile.write(line) elif 'unicode_literals' in line: future_imports = future_imports + ', unicode_literals' tmpfile.writelines(( future_imports + '\n', 'import sys\n', 'sys.path.append("%s")\n' % fpath.replace('\\', '\\\\'), 'import matplotlib\n', 'matplotlib.use("%s")\n' % backend, 'from pylab import savefig\n', 'import numpy\n', 'numpy.seterr(invalid="ignore")\n', )) for line in open(fullpath): line_lstrip = line.lstrip() if (line_lstrip.startswith('from __future__ import') or line_lstrip.startswith('matplotlib.use') or line_lstrip.startswith('savefig') or line_lstrip.startswith('show')): continue tmpfile.write(line) if backend in rcsetup.interactive_bk: tmpfile.write('show()') else: tmpfile.write('\nsavefig(r"%s", dpi=150)' % outfile) tmpfile.close() start_time = time.time() program = [x % {'name': basename} for x in python] ret = run(program + [tmpfile_name] + switches) end_time = time.time() print("%s %s" % ((end_time - start_time), ret)) #os.system('%s %s %s' % (python, tmpfile_name, ' '.join(switches))) os.remove(tmpfile_name) if ret: failures.append(fullpath) return failures def parse_options(): doc = (__doc__ and __doc__.split('\n\n')) or " " op = OptionParser(description=doc[0].strip(), usage='%prog [options] [--] [backends and switches]', #epilog='\n'.join(doc[1:]) # epilog not supported on my python2.4 machine: JDH ) op.disable_interspersed_args() op.set_defaults(dirs='pylab,api,units,mplot3d', clean=False, coverage=False, valgrind=False) op.add_option('-d', '--dirs', '--directories', type='string', dest='dirs', help=dedent(''' Run only the tests in these directories; comma-separated list of one or more of: pylab (or pylab_examples), api, units, mplot3d''')) op.add_option('-b', '--backends', type='string', dest='backends', help=dedent(''' Run tests only for these backends; comma-separated list of one or more of: agg, ps, svg, pdf, template, cairo, Default is everything except cairo.''')) op.add_option('--clean', action='store_true', dest='clean', help='Remove result directories, run no tests') op.add_option('-c', '--coverage', action='store_true', dest='coverage', help='Run in coverage.py') op.add_option('-v', '--valgrind', action='store_true', dest='valgrind', help='Run in valgrind') options, args = op.parse_args() switches = [x for x in args if x.startswith('--')] backends = [x.lower() for x in args if not x.startswith('--')] if options.backends: backends += [be.lower() for be in options.backends.split(',')] result = Bunch( dirs=options.dirs.split(','), backends=backends or ['agg', 'ps', 'svg', 'pdf', 'template'], clean=options.clean, coverage=options.coverage, valgrind=options.valgrind, switches=switches) if 'pylab_examples' in result.dirs: result.dirs[result.dirs.index('pylab_examples')] = 'pylab' #print(result) return (result) if __name__ == '__main__': times = {} failures = {} options = parse_options() if options.clean: localdirs = [d for d in glob.glob('*') if os.path.isdir(d)] all_backends_set = set(all_backends) for d in localdirs: if d.lower() not in all_backends_set: continue print('removing %s' % d) for fname in glob.glob(os.path.join(d, '*')): os.remove(fname) os.rmdir(d) for fname in glob.glob('_tmp*.py'): os.remove(fname) print('all clean...') raise SystemExit if options.coverage: python = ['coverage.py', '-x'] elif options.valgrind: python = ['valgrind', '--tool=memcheck', '--leak-check=yes', '--log-file=%(name)s', sys.executable] elif sys.platform == 'win32': python = [sys.executable] else: python = [sys.executable] report_all_missing(options.dirs) for backend in options.backends: print('testing %s %s' % (backend, ' '.join(options.switches))) t0 = time.time() failures[backend] = \ drive(backend, options.dirs, python, options.switches) t1 = time.time() times[backend] = (t1 - t0)/60.0 #print(times) for backend, elapsed in times.items(): print('Backend %s took %1.2f minutes to complete' % (backend, elapsed)) failed = failures[backend] if failed: print(' Failures: %s' % failed) if 'template' in times: print('\ttemplate ratio %1.3f, template residual %1.3f' % ( elapsed/times['template'], elapsed - times['template'])) Keywords: python, matplotlib, pylab, example, codex (see :ref:`how-to-search-examples`)