__name__ is a special variable<\/p>\n\n\n\n
Python automatically makes __name__ = \u201c__main__\u201d as you can see below<\/p>\n\n\n\n So we will write a condition to check whether __name__ == __main__ then call the Python’s main function. This checking will make sure that this hello.py is running this script. We will take a deep look into this when we will discuss importing other files than you will be able to see the importance of this.<\/p>\n\n\n\n We can call different functions from the main functions. Let\u2019s have a look at the example.<\/p>\n\n\n\n Take a look at the screenshot below. When we run the articles.py file __main__ is set to \u201c__name__\u201d<\/p>\n\n\n\n But when we import the articles.py file in secondFile __main__ is set to \u201carticles\u201d<\/p>\n\n\n\n This __main__ function gives us control over when to run the main function.<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" What is the main function? The first function which is called when you run a program in any programming language is the main function. Python specifically does not have the Python’s main function as it is an interpreter language but we can create the main function and run it when the python file is run […]<\/p>\n","protected":false},"author":1,"featured_media":4394,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[342],"tags":[483,1221,1222],"class_list":["post-4381","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python-tutorials","tag-examples","tag-pythons-main-function","tag-what-is-the-main-function"],"_links":{"self":[{"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/posts\/4381","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/comments?post=4381"}],"version-history":[{"count":0,"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/posts\/4381\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/media\/4394"}],"wp:attachment":[{"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/media?parent=4381"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/categories?post=4381"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/tags?post=4381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"main](\"https:\/\/www.h2kinfosys.com\/blog\/wp-content\/uploads\/2020\/08\/image-3.png\" "\\"\\"")
<\/figure>\n\n\n\ndef main():\n\tprint(\"I am main function\")\n\n\nif __name__ == \"__main__\":\n\tmain()<\/code><\/pre>\n\n\n\n![\"\"](\"https:\/\/www.h2kinfosys.com\/blog\/wp-content\/uploads\/2020\/08\/image-4.png\" "\\"\\"")
<\/figure>\n\n\n\n![\"main](\"https:\/\/www.h2kinfosys.com\/blog\/wp-content\/uploads\/2020\/08\/image-5.png\" "\\"\\"")
<\/figure>\n\n\n\nUnderstanding __name__ == \u201c__main__\u201d<\/h2>\n\n\n\n
def function_one():\n\tprint(\"I am first function\")\n\n\nif __name__ == \"__main__\":\n\tfunction_one()\nprint(\"Value in built variable name is: \", __name__)<\/code><\/pre>\n\n\n\n![\"understanding](\"https:\/\/www.h2kinfosys.com\/blog\/wp-content\/uploads\/2020\/08\/image-6.png\" "\\"\\"")
<\/figure>\n\n\n\nimport articles\nprint(\"Hello\")<\/code><\/pre>\n\n\n\n![\"\"](\"https:\/\/www.h2kinfosys.com\/blog\/wp-content\/uploads\/2020\/08\/image-7.png\" "\\"\\"")
<\/figure>\n\n\n\n