{"id":13135,"date":"2022-10-03T02:38:47","date_gmt":"2022-10-02T21:08:47","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-python-run-from-subdirectory\/"},"modified":"2022-10-03T02:38:47","modified_gmt":"2022-10-02T21:08:47","slug":"solved-python-run-from-subdirectory","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-python-run-from-subdirectory\/","title":{"rendered":"[Solved] Python run from subdirectory"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-42916066\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"42916066\" data-parentid=\"42902793\" data-score=\"2\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>I added empty <code>__init__.py<\/code> files to <code>Main\/, A\/, B\/, and C\/<\/code>. I also put the following function in each of the <code>.py<\/code> files just so we had something to call:<\/p>\n<pre><code>def f():\n    print __name__\n<\/code><\/pre>\n<p>In <code>main.py<\/code>, the significant function is get_module, which calls <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/docs.python.org\/2.7\/library\/importlib.html\">import_module from importlib<\/a>.<\/p>\n<pre><code>import errno\nfrom importlib import import_module\nimport os\nfrom shutil import copytree\nimport sys\n\nbase=\"Main\"\n\ndef get_module(arg):\n    # 'X_x.py' becomes 'X.x'\n    name = arg.strip('.py').replace('_', '.')\n    # full_name will be 'Main.X.x'\n    full_name = base + '.' + name\n    try:\n        return import_module(full_name)\n    except ImportError as e:\n        print e\n\ndef main():\n    # D is not listed\n    print os.listdir(base)\n    # works for A\n    mod = get_module('A_a.py')\n    if mod:\n        mod.f()\n        # can also call like this\n        mod.__dict__['f']()\n    # doesn't work for D\n    mod = get_module('D_a.py')\n    if mod:\n        mod.f()\n        mod.__dict__['f']()\n    # copy files from A to D\n    try:\n        copytree(os.path.join(base, 'A'),\n                 os.path.join(base, 'D'))\n    except OSError as e:\n        print e\n        if e.errno != errno.EEXIST:\n            sys.exit(-1)\n    # D should be listed\n    print os.listdir(base)\n    # should work for D\n    mod = get_module('D_a.py')\n    if mod:\n        mod.f()\n        mod.__dict__['f']()\n\nif __name__ == '__main__':\n    main()\n<\/code><\/pre>\n<p>If all goes well this should be the output:<\/p>\n<pre><code>$ python2.7 main.py\n['__init__.py', '__init__.pyc', 'A']\nMain.A.a\nMain.A.a\nNo module named D.a\n['__init__.py', '__init__.pyc', 'D', 'A']\nMain.D.a\nMain.D.a\n<\/code><\/pre>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Python run from subdirectory <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] I added empty __init__.py files to Main\/, A\/, B\/, and C\/. I also put the following function in each of the .py files just so we had something to call: def f(): print __name__ In main.py, the significant function is get_module, which calls import_module from importlib. import errno from importlib import import_module import os &#8230; <a title=\"[Solved] Python run from subdirectory\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-python-run-from-subdirectory\/\" aria-label=\"More on [Solved] Python run from subdirectory\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[497,349,499],"class_list":["post-13135","post","type-post","status-publish","format-standard","hentry","category-solved","tag-django","tag-python","tag-python-2-7"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Python run from subdirectory - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-python-run-from-subdirectory\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Python run from subdirectory - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] I added empty __init__.py files to Main\/, A\/, B\/, and C\/. I also put the following function in each of the .py files just so we had something to call: def f(): print __name__ In main.py, the significant function is get_module, which calls import_module from importlib. import errno from importlib import import_module import os ... 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