So you want to do something python that’s not supported in Mel but are unsure how exactly to link the two.<\/p>\n
<\/p>\n
<\/p>\n
OK so lets start with the python side of things.<\/p>\n
<\/p>\n
Python:<\/p>\n
<\/p>\n
You have a file called "myFirstScript.py" inside your ‘Documentsmaya2008scripts’ directory and you want to execute it.<\/p>\n
<\/p>\n
\n#\tmyFirstScript.py\t#\n\n######################\n#\timports\n######################\n\nimport maya.mel as mel\n\n######################\n#\tfunctions\n######################\ndef helloWorld():\n\tprint('Hello World! (python native)')\n\tmel.eval('print "Hello World! (mel via python)\\n"')\n<\/pre>\n <\/p>\n
Now that seems simple enough? From what most of the docs say all you need to type in a python window is:<\/p>\n
\nimport myFirstScript\nmyFirstScript.helloWorld()\n<\/pre>\nHowever you’ll find this doesn’t work! You’ll get an error something like:<\/p>\n
\n# Error: line 1: No module named myFirstScript\n# Traceback (most recent call last):\n# File "<maya console>", line 1, in <module>\n# ImportError: No module named myFirstScript #\n<\/pre>\nFor some reason Autodesk messed up the default paths for the python search path so you have to add one extra:<\/p>\n
\nimport sys\nsys.path.append(path) # where path equals the full path to the place you put your script i.e.<\/pre>\n\nimport sys\nsys.path.append('C:\/Users\/Rod\/Documents\/maya\/2008\/scripts' ) # Note: No trailing slash!!!!\n<\/pre>\nWhat Autodesk seem to have done is added an extra forward slash at the end of the path where python doesn’t want it. If you type ‘sys.path’ in a python script window and press enter you’ll see the full list of default paths it’ll search through.<\/p>\n
\n# Result: ['C:\\Program Files\\Autodesk\\Maya2008\\bin',\n'C:\\Program Files\\Autodesk\\Maya2008\\bin\\python25.zip',\n'C:\\Program Files\\Autodesk\\Maya2008\\Python\\DLLs',\n'C:\\Program Files\\Autodesk\\Maya2008\\Python\\lib',\n'C:\\Program Files\\Autodesk\\Maya2008\\Python\\lib\\plat-win',\n'C:\\Program Files\\Autodesk\\Maya2008\\Python\\lib\\lib-tk',\n'C:\\Program Files\\Autodesk\\Maya2008\\bin',\n'C:\\Program Files\\Autodesk\\Maya2008\\Python',\n'C:\\Program Files\\Autodesk\\Maya2008\\Python\\lib\\site-packages',\nu'C:\/Users\/Rod\/Documents\/maya\/2008\/prefs\/scripts',\nu'C:\/Users\/Rod\/Documents\/maya\/2008\/scripts\/',\nu'C:\/Users\/Rod\/Documents\/maya\/scripts'] #\n<\/pre>\nHopefully they fix it with the next update but until then if you want your python scripts in that dir or any other you’ll need to do the sys.path.append command.<\/p>\n
<\/p>\n
\nMel:<\/p>\n
Now we’ve got the python script importing correctly how do we execute this via Mel?<\/p>\n
\npython("import myFirstScript"); \/\/ Source or 'import' the myFirstScript.py as a new module\npython("myFirstScript.helloWorld()"); \/\/ Execute the helloWorld function inside the myFirstScript module\n<\/pre>\n <\/p>\n
That’s it!<\/p>\n","protected":false},"excerpt":{"rendered":"
So you want to do something python that’s not supported in Mel but are unsure how exactly to link the two.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,7,11,13,15],"tags":[54,37,41,56,58],"class_list":["post-205","post","type-post","status-publish","format-standard","hentry","category-art","category-maya-art","category-technical-art","category-tools","category-tutorials","tag-maya-art","tag-mel","tag-python","tag-technical-art","tag-tutorials"],"_links":{"self":[{"href":"https:\/\/www.rodgreen.com\/index.php?rest_route=\/wp\/v2\/posts\/205","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.rodgreen.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.rodgreen.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.rodgreen.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.rodgreen.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=205"}],"version-history":[{"count":0,"href":"https:\/\/www.rodgreen.com\/index.php?rest_route=\/wp\/v2\/posts\/205\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.rodgreen.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=205"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.rodgreen.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=205"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.rodgreen.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=205"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}