{"id":22885,"date":"2019-10-24T12:25:57","date_gmt":"2019-10-24T16:25:57","guid":{"rendered":"https:\/\/ibkrcampus.com\/?p=22885"},"modified":"2024-05-21T16:19:50","modified_gmt":"2024-05-21T20:19:50","slug":"install-python-packages-part-iii","status":"publish","type":"post","link":"https:\/\/www.interactivebrokers.com\/campus\/ibkr-quant-news\/install-python-packages-part-iii\/","title":{"rendered":"How To Install Python Packages \u2013 Part III"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><em>For the initial installation instructions see <\/em><a href=\"\/campus\/ibkr-quant-news\/install-python-packages-part-i\/\"><em>Part I<\/em><\/a><em> and <\/em><a href=\"\/campus\/ibkr-quant-news\/install-python-packages-part-ii\/\"><em>Part II<\/em><\/a><em>.<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>What happens if the package is not installed?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">As we had mentioned previously, Python has certain built-in packages which are installed along with the installation of Python. But what about the packages that do not come along with Python installation. If you try to import such packages without installing them first you would get an error called &#8216;ModuleNotFoundError&#8217;.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, Backtrader is a Python package used for live trading and backtesting trading strategies. You can see the error when we try to import it.<\/p>\n\n\n\n<p style=\"background-color:#fcfcdb;font-size:11px\" class=\"has-background\"># import the package<br>\nimport backtrader<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" data-src=\"https:\/\/d1rwhvwstyk9gu.cloudfront.net\/2019\/09\/output-1-1.png\" alt=\"Python\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>PyPI &#8211; Python Package Index<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Most open source Python packages are made available through PyPI &#8211; Python Package Index. It is a repository of software for the Python programming language. You can find the packages developed and shared by the Python community&nbsp;<a href=\"https:\/\/pypi.org\/\">here<\/a>. You can also publish your package through PyPI.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To install the packages from PyPI you would need a package installer. The recommended package installer for PyPI is \u2018pip\u2019. Pip is installed along when you install Python in your system. You need not worry about downloading or installing pip exclusively. However, we will still cover the installation of pip in the next section of \u2018how to install Python packages tutorial\u2019.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The authors discuss what to do when Python packages do not get installed.<\/p>\n","protected":false},"author":186,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"_acf_changed":true,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[339,343,349,338,350,341,344],"tags":[851,852,1225,1224,4804,595],"contributors-categories":[13654],"class_list":["post-22885","post","type-post","status-publish","format-standard","category-data-science","category-programing-languages","category-python-development","category-ibkr-quant-news","category-quant-asia-pacific","category-quant-development","category-quant-regions","tag-algo-trading","tag-machine-learning","tag-numpy","tag-pandas","tag-pypi","tag-python","contributors-categories-quantinsti"],"pp_statuses_selecting_workflow":false,"pp_workflow_action":"current","pp_status_selection":"publish","acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>How To Install Python Packages \u2013 Part III | IBKR Quant<\/title>\n<meta name=\"description\" content=\"The authors address cases when Python packages do not get installed. They also demonstrate Backtrader, used for live trading and backtesting.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.interactivebrokers.com\/campus\/wp-json\/wp\/v2\/posts\/22885\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How To Install Python Packages \u2013 Part III | Quant Blog\" \/>\n<meta property=\"og:description\" content=\"The authors address cases when Python packages do not get installed. They also demonstrate Backtrader, used for live trading and backtesting.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.interactivebrokers.com\/campus\/ibkr-quant-news\/install-python-packages-part-iii\/\" \/>\n<meta property=\"og:site_name\" content=\"IBKR Campus US\" \/>\n<meta property=\"article:published_time\" content=\"2019-10-24T16:25:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-21T20:19:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/d1rwhvwstyk9gu.cloudfront.net\/2019\/09\/output-1-1.png\" \/>\n<meta name=\"author\" content=\"Contributor Author\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Contributor Author\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\n\t    \"@context\": \"https:\\\/\\\/schema.org\",\n\t    \"@graph\": [\n\t        {\n\t            \"@type\": \"NewsArticle\",\n\t            \"@id\": \"https:\\\/\\\/www.interactivebrokers.com\\\/campus\\\/ibkr-quant-news\\\/install-python-packages-part-iii\\\/#article\",\n\t            \"isPartOf\": {\n\t                \"@id\": \"https:\\\/\\\/www.interactivebrokers.com\\\/campus\\\/ibkr-quant-news\\\/install-python-packages-part-iii\\\/\"\n\t            },\n\t            \"author\": {\n\t                \"name\": \"Contributor Author\",\n\t                \"@id\": \"https:\\\/\\\/ibkrcampus.com\\\/campus\\\/#\\\/schema\\\/person\\\/e823e46b42ca381080387e794318a485\"\n\t            },\n\t            \"headline\": \"How To Install Python Packages \u2013 Part III\",\n\t            \"datePublished\": \"2019-10-24T16:25:57+00:00\",\n\t            \"dateModified\": \"2024-05-21T20:19:50+00:00\",\n\t            \"mainEntityOfPage\": {\n\t                \"@id\": \"https:\\\/\\\/www.interactivebrokers.com\\\/campus\\\/ibkr-quant-news\\\/install-python-packages-part-iii\\\/\"\n\t            },\n\t            \"wordCount\": 220,\n\t            \"publisher\": {\n\t                \"@id\": \"https:\\\/\\\/ibkrcampus.com\\\/campus\\\/#organization\"\n\t            },\n\t            \"image\": {\n\t                \"@id\": \"https:\\\/\\\/www.interactivebrokers.com\\\/campus\\\/ibkr-quant-news\\\/install-python-packages-part-iii\\\/#primaryimage\"\n\t            },\n\t            \"thumbnailUrl\": \"https:\\\/\\\/d1rwhvwstyk9gu.cloudfront.net\\\/2019\\\/09\\\/output-1-1.png\",\n\t            \"keywords\": [\n\t                \"Algo Trading\",\n\t                \"Machine Learning\",\n\t                \"NumPy\",\n\t                \"Pandas\",\n\t                \"PyPi\",\n\t                \"Python\"\n\t            ],\n\t            \"articleSection\": [\n\t                \"Data Science\",\n\t                \"Programming Languages\",\n\t                \"Python Development\",\n\t                \"Quant\",\n\t                \"Quant Asia Pacific\",\n\t                \"Quant Development\",\n\t                \"Quant Regions\"\n\t            ],\n\t            \"inLanguage\": \"en-US\"\n\t        },\n\t        {\n\t            \"@type\": \"WebPage\",\n\t            \"@id\": \"https:\\\/\\\/www.interactivebrokers.com\\\/campus\\\/ibkr-quant-news\\\/install-python-packages-part-iii\\\/\",\n\t            \"url\": \"https:\\\/\\\/www.interactivebrokers.com\\\/campus\\\/ibkr-quant-news\\\/install-python-packages-part-iii\\\/\",\n\t            \"name\": \"How To Install Python Packages \u2013 Part III | Quant Blog\",\n\t            \"isPartOf\": {\n\t                \"@id\": \"https:\\\/\\\/ibkrcampus.com\\\/campus\\\/#website\"\n\t            },\n\t            \"primaryImageOfPage\": {\n\t                \"@id\": \"https:\\\/\\\/www.interactivebrokers.com\\\/campus\\\/ibkr-quant-news\\\/install-python-packages-part-iii\\\/#primaryimage\"\n\t            },\n\t            \"image\": {\n\t                \"@id\": \"https:\\\/\\\/www.interactivebrokers.com\\\/campus\\\/ibkr-quant-news\\\/install-python-packages-part-iii\\\/#primaryimage\"\n\t            },\n\t            \"thumbnailUrl\": \"https:\\\/\\\/d1rwhvwstyk9gu.cloudfront.net\\\/2019\\\/09\\\/output-1-1.png\",\n\t            \"datePublished\": \"2019-10-24T16:25:57+00:00\",\n\t            \"dateModified\": \"2024-05-21T20:19:50+00:00\",\n\t            \"description\": \"The authors address cases when Python packages do not get installed. 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