How to use cmd_exists method in avocado

Best Python code snippet using avocado_python

test_nbconvert_handlers.py

Source: test_nbconvert_handlers.py Github

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...12 new_notebook, new_markdown_cell, new_code_cell, new_output,13)14from ipython_genutils.testing.decorators import onlyif_cmds_exist15from base64 import encodebytes16def cmd_exists(cmd):17 """Check is a command exists."""18 if shutil.which(cmd) is None:19 return False20 return True21class NbconvertAPI(object):22 """Wrapper for nbconvert API calls."""23 def __init__(self, request):24 self.request = request25 def _req(self, verb, path, body=None, params=None):26 response = self.request(verb,27 url_path_join('nbconvert', path),28 data=body, params=params,29 )30 response.raise_for_status()31 return response32 def from_file(self, format, path, name, download=False):33 return self._req('GET', url_path_join(format, path, name),34 params={'download':download})35 def from_post(self, format, nbmodel):36 body = json.dumps(nbmodel)37 return self._req('POST', format, body)38 def list_formats(self):39 return self._req('GET', '')40png_green_pixel = encodebytes(b'\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00'41b'\x00\x00\x01\x00\x00x00\x01\x08\x02\x00\x00\x00\x90wS\xde\x00\x00\x00\x0cIDAT'42b'\x08\xd7c\x90\xfb\xcf\x00\x00\x02\\\x01\x1e.~d\x87\x00\x00\x00\x00IEND\xaeB`\x82'43).decode('ascii')44class APITest(NotebookTestBase):45 def setUp(self):46 nbdir = self.notebook_dir47 if not os.path.isdir(pjoin(nbdir, 'foo')):48 subdir = pjoin(nbdir, 'foo')49 os.mkdir(subdir)50 # Make sure that we clean this up when we're done.51 # By using addCleanup this will happen correctly even if we fail52 # later in setUp.53 @self.addCleanup54 def cleanup_dir():55 shutil.rmtree(subdir, ignore_errors=True)56 nb = new_notebook()57 nb.cells.append(new_markdown_cell(u'Created by test ³'))58 cc1 = new_code_cell(source=u'print(2*6)')59 cc1.outputs.append(new_output(output_type="stream", text=u'12'))60 cc1.outputs.append(new_output(output_type="execute_result",61 data={'image/​png' : png_green_pixel},62 execution_count=1,63 ))64 nb.cells.append(cc1)65 with io.open(pjoin(nbdir, 'foo', 'testnb.ipynb'), 'w',66 encoding='utf-8') as f:67 write(nb, f, version=4)68 self.nbconvert_api = NbconvertAPI(self.request)69 @pytest.mark.skipif(70 not cmd_exists('pandoc'),71 reason="Pandoc wasn't found. Skipping this test."72 )73 def test_from_file(self):74 r = self.nbconvert_api.from_file('html', 'foo', 'testnb.ipynb')75 self.assertEqual(r.status_code, 200)76 self.assertIn(u'text/​html', r.headers['Content-Type'])77 self.assertIn(u'Created by test', r.text)78 self.assertIn(u'print', r.text)79 r = self.nbconvert_api.from_file('python', 'foo', 'testnb.ipynb')80 self.assertIn(u'text/​x-python', r.headers['Content-Type'])81 self.assertIn(u'print(2*6)', r.text)82 @pytest.mark.skipif(83 not cmd_exists('pandoc'),84 reason="Pandoc wasn't found. Skipping this test."85 )86 def test_from_file_404(self):87 with assert_http_error(404):88 self.nbconvert_api.from_file('html', 'foo', 'thisdoesntexist.ipynb')89 @pytest.mark.skipif(90 not cmd_exists('pandoc'),91 reason="Pandoc wasn't found. Skipping this test."92 )93 def test_from_file_download(self):94 r = self.nbconvert_api.from_file('python', 'foo', 'testnb.ipynb', download=True)95 content_disposition = r.headers['Content-Disposition']96 self.assertIn('attachment', content_disposition)97 self.assertIn('testnb.py', content_disposition)98 @pytest.mark.skipif(99 not cmd_exists('pandoc'),100 reason="Pandoc wasn't found. Skipping this test."101 )102 def test_from_file_zip(self):103 r = self.nbconvert_api.from_file('latex', 'foo', 'testnb.ipynb', download=True)104 self.assertIn(u'application/​zip', r.headers['Content-Type'])105 self.assertIn(u'.zip', r.headers['Content-Disposition'])106 @pytest.mark.skipif(107 not cmd_exists('pandoc'),108 reason="Pandoc wasn't found. Skipping this test."109 )110 def test_from_post(self):111 nbmodel = self.request('GET', 'api/​contents/​foo/​testnb.ipynb').json()112 r = self.nbconvert_api.from_post(format='html', nbmodel=nbmodel)113 self.assertEqual(r.status_code, 200)114 self.assertIn(u'text/​html', r.headers['Content-Type'])115 self.assertIn(u'Created by test', r.text)116 self.assertIn(u'print', r.text)117 r = self.nbconvert_api.from_post(format='python', nbmodel=nbmodel)118 self.assertIn(u'text/​x-python', r.headers['Content-Type'])119 self.assertIn(u'print(2*6)', r.text)120 @pytest.mark.skipif(121 not cmd_exists('pandoc'),122 reason="Pandoc wasn't found. Skipping this test."123 )124 def test_from_post_zip(self):125 nbmodel = self.request('GET', 'api/​contents/​foo/​testnb.ipynb').json()126 r = self.nbconvert_api.from_post(format='latex', nbmodel=nbmodel)127 self.assertIn(u'application/​zip', r.headers['Content-Type'])...

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generate-pixmaps.py

Source: generate-pixmaps.py Github

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...5import sys6import subprocess7# note: to be launched from where the svg files are8# this script requires inkscape, imagemagick and makeicns9def cmd_exists(cmd):10 return subprocess.call("type " + cmd, shell=True, 11 stdout=subprocess.PIPE, stderr=subprocess.PIPE) == 012if __name__ == '__main__':13 if not cmd_exists('inkscape'):14 print 'Install Inkscape!'15 sys.exit(1)16 if not cmd_exists('convert'):17 print 'convert not found, Windows icons generation disabled'18 if not cmd_exists('makeicns'):19 print 'makeicns not found, OS X icons generation disabled'20 21 for file in glob.glob('*.svg'):22 23 def convert(target_dir, target_size, add=''):24 source_file = os.path.join(os.getcwd(), file)25 target_file = os.path.join(os.getcwd(), target_dir, os.path.splitext(file)[0] + add + '.png')26 print source_file27 print target_file28 cmd = 'inkscape --export-png={0} --export-width={1} --export-height={1} {2}'29 os.system(cmd.format(target_file, target_size, source_file))30 31 base_source_file = os.path.splitext(file)[0]32 print 'Processing ' + base_source_file33 34 print 'Generating freedesktop files'35 convert('../​freedesktop/​48x48', '48')36 37 if cmd_exists('convert'):38 print 'Generating Windows ico'39 convert('../​windows/​', '256', '-256')40 convert('../​windows/​', '48', '-48')41 os.system('convert ../​windows/​{0}-48.png ../​windows/​{0}-256.png ../​windows/​{0}.ico'.format(base_source_file))42 os.system('rm ../​windows/​{0}-48.png ../​windows/​{0}-256.png'.format(base_source_file))43 44 if cmd_exists('makeicns'):45 print 'Generating OS X icns'46 convert('../​osx/​', '512', '-512')47 convert('../​osx/​', '256', '-256')48 convert('../​osx/​', '128', '-128')49 convert('../​osx/​', '32', '-32')50 convert('../​osx/​', '16', '-16')51 os.system('makeicns -512 ../​osx/​{0}-512.png -256 ../​osx/​{0}-256.png -128 ../​osx/​{0}-128.png -32 ../​osx/​{0}-32.png -16 ../​osx/​{0}-16.png -out ../​osx/​{0}.icns'.format(base_source_file))...

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