We often need to comment out block of codes in python while testing or debugging the code. When a block is turned into a python comment, it doesn\u2019t contribute in output of the program and helps to determine which function or block is generating error in the program. In this article, we will look at some shortcut to comment out multiple lines of code at once in different python IDEs. Lets see examples for each IDE one by one.<\/p>\n
In spyder python IDE, we can comment a single line of code by selecting the line and then using the key combination\u00a0 After pressing\u00a0 The shortcut to comment out multiple lines of code in spyder IDE is to first select all the lines which need to be commented out and then the key combination ctrl+4 is pressed. This turns the entire selected lines into a\u00a0python comment\u00a0as shown below.<\/p>\n After pressing ctrl+4:<\/p>\n We can also use\u00a0 To comment out a block of code in IDLE, we have to first select the line and then press the key combination ctrl+D. This will comment out the selected lines of code as shown below.<\/p>\n After pressing\u00a0 To uncomment the lines of code, we just have to select the lines and then press\u00a0 We can use ctrl+\/ to comment out the selected lines of python code in Jupyter Notebook. This turns selected lines of code into comment as shown below.<\/p>\n After pressing\u00a0 To uncomment the selected lines, we just have to again press\u00a0 If we have to comment out multiple lines of code in Pycharm, we can select the lines to be commented out and then press\u00a0 In this article, we have seen shortcuts to comment out multiple lines at once in python different IDEs like spyder, IDLE, Jupyter Notebook and PyCharm. Stay tuned for more informative articles.<\/p>\n We often need to comment out block of codes in python while testing or debugging the code. When a block is turned into a python comment, it doesn\u2019t contribute in output of the program and helps to determine which function or block is generating error in the program. In this article, we will look at…<\/p>\n","protected":false},"author":1,"featured_media":3894,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","footnotes":""},"categories":[2],"tags":[],"jetpack_featured_media_url":"https:\/\/pythonarray.com\/wp-content\/uploads\/2021\/07\/Shortcut-to-Comment-out-Multiple-Lines-in-Python.png","jetpack-related-posts":[{"id":2261,"url":"https:\/\/pythonarray.com\/how-to-create-multiline-comments-in-python\/","url_meta":{"origin":2263,"position":0},"title":"How to create Multiline Comments in Python","date":"May 12, 2022","format":false,"excerpt":"Comments are used to enhance readability and understandability of source code by providing proper information about the code. Comments are not executed by an interpreter or compiler and they are used in the code only for assistance of the programmer. In this article, we will understand how to create multiline\u2026","rel":"","context":"In "Python"","img":{"alt_text":"How to create Multiline Comments in Python","src":"https:\/\/i2.wp.com\/pythonarray.com\/wp-content\/uploads\/2021\/07\/How-to-create-Multiline-Comments-in-Python.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":2267,"url":"https:\/\/pythonarray.com\/single-line-and-multi-line-comments-in-python\/","url_meta":{"origin":2263,"position":1},"title":"Single Line and Multi Line Comments in Python","date":"May 12, 2022","format":false,"excerpt":"A comment is a piece of code that isn\u2019t executed by the compiler or interpreter when the program is executed. Comments can only be read when we have access to the source code. Comments are used to explain the source code and to make the code more readable and understandable.\u2026","rel":"","context":"In "Python"","img":{"alt_text":"Single Line and Multi Line Comments in Python","src":"https:\/\/i2.wp.com\/pythonarray.com\/wp-content\/uploads\/2021\/07\/Single-Line-and-Multi-Line-Comments-in-Python.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":2150,"url":"https:\/\/pythonarray.com\/comment-out-a-block-of-code-in-python\/","url_meta":{"origin":2263,"position":2},"title":"Comment out a block of code in Python","date":"July 5, 2022","format":false,"excerpt":"There may be many situations while testing or debugging python programs where we want a certain statement in the code or a block of statements in the code not to be executed. For this purpose we comment out the block of code. In this article, we will see how we\u2026","rel":"","context":"In "Python"","img":{"alt_text":"Comment out a block of code in Python","src":"https:\/\/i0.wp.com\/pythonarray.com\/wp-content\/uploads\/2021\/07\/Comment-out-a-block-of-code-in-Python.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]},{"id":745,"url":"https:\/\/pythonarray.com\/python-programming-python-documentation\/","url_meta":{"origin":2263,"position":3},"title":"Python Programming - Python Documentation","date":"July 9, 2022","format":false,"excerpt":"Python Programming - Python Documentation Documentation is a very important part of any programming language. The documentation section helps in keeping track of what is a particular line of code or a block of code is performing. 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IDLE's menus dynamically change based on the window\u2026","rel":"","context":"In "Python"","img":{"alt_text":"Python Programming \u2013 IDLE Menus","src":"https:\/\/i0.wp.com\/pythonarray.com\/wp-content\/uploads\/2021\/04\/Python-Programming-\u2013-IDLE-Menus.png?resize=350%2C200&ssl=1","width":350,"height":200},"classes":[]}],"_links":{"self":[{"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/posts\/2263"}],"collection":[{"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/comments?post=2263"}],"version-history":[{"count":2,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/posts\/2263\/revisions"}],"predecessor-version":[{"id":3896,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/posts\/2263\/revisions\/3896"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/media\/3894"}],"wp:attachment":[{"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/media?parent=2263"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/categories?post=2263"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pythonarray.com\/wp-json\/wp\/v2\/tags?post=2263"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}ctrl+1<\/code> . This will turn the selected single line to a comment as shown below. The function given in the example adds a number and its square to a\u00a0python dictionary\u00a0as a key-value pair.<\/p>\nprint(\"This line will be commented out.\")\r\ndef add_square_to_dict(x,mydict):\r\n a=x*x\r\n mydict[str(x)]=a\r\n return mydict<\/pre>\n
ctrl+1<\/code>:<\/p>\n#print(\"This line will be commented out.\")\r\ndef add_square_to_dict(x,mydict):\r\n a=x*x\r\n mydict[str(x)]=a\r\n return mydict<\/pre>\n
class MyNumber():\r\n \"\"\"This is the docstring of this class.\r\n \r\n It describes what this class does and all its attributes.\"\"\"\r\n def __init__(self, value):\r\n self.value=value\r\n def increment(self):\r\n \"\"\"This is the docstring for this method.\r\n \r\n It describes what the method does, what are its calling conventions and\r\n what are its side effects\"\"\"\r\n self.value=self.value+1\r\n return self.value\r\n print (MyNumber.increment.__doc__)<\/pre>\n
# =============================================================================\r\n# \r\n# class MyNumber():\r\n# \"\"\"This is the docstring of this class.\r\n# \r\n# It describes what this class does and all its attributes.\"\"\"\r\n# def __init__(self, value):\r\n# self.value=value\r\n# def increment(self):\r\n# \"\"\"This is the docstring for this method.\r\n# \r\n# It describes what the method does, what are its calling conventions and\r\n# what are its side effects\"\"\"\r\n# self.value=self.value+1\r\n# return self.value\r\n# print (MyNumber.increment.__doc__)\r\n# =============================================================================<\/pre>\n
ctrl+1<\/code>\u00a0to uncomment the lines after selecting them when they are commented out or comment out the lines after selecting them to comment them out. In some versions of Spyder\u00a0ctrl+5<\/code>\u00a0can be used to uncomment the lines of code.<\/p>\n\n
Shortcut to comment out multiple lines in IDLE<\/h3>\n
class MyNumber():\r\n \"\"\"This is the docstring of this class.\r\n \r\n It describes what this class does and all its attributes.\"\"\"\r\n def __init__(self, value):\r\n self.value=value\r\n def increment(self):\r\n \"\"\"This is the docstring for this method.\r\n \r\n It describes what the method does, what are its calling conventions and\r\n what are its side effects\"\"\"\r\n self.value=self.value+1\r\n return self.value\r\n print (MyNumber.increment.__doc__)<\/pre>\n
ctrl+D<\/code>:<\/p>\n## class MyNumber():\r\n## \"\"\"This is the docstring of this class.\r\n## \r\n## It describes what this class does and all its attributes.\"\"\"\r\n## def __init__(self, value):\r\n## self.value=value\r\n## def increment(self):\r\n## \"\"\"This is the docstring for this method.\r\n## \r\n## It describes what the method does, what are its calling conventions and\r\n## what are its side effects\"\"\"\r\n## self.value=self.value+1\r\n## return self.value\r\n## print (MyNumber.increment.__doc__)<\/pre>\n
ctrl+shift+d<\/code>. This will uncomment the selected lines.<\/p>\nShortcut to comment out multiple lines in Jupyter Notebook<\/h3>\n
class MyNumber():\r\n \"\"\"This is the docstring of this class.\r\n \r\n It describes what this class does and all its attributes.\"\"\"\r\n def __init__(self, value):\r\n self.value=value\r\n def increment(self):\r\n \"\"\"This is the docstring for this method.\r\n \r\n It describes what the method does, what are its calling conventions and\r\n what are its side effects\"\"\"\r\n self.value=self.value+1\r\n return self.value\r\n print (MyNumber.increment.__doc__)<\/pre>\n
ctrl+\/<\/code>:<\/p>\n# class MyNumber():\r\n# \"\"\"This is the docstring of this class.\r\n \r\n# It describes what this class does and all its attributes.\"\"\"\r\n# def __init__(self, value):\r\n# self.value=value\r\n# def increment(self):\r\n# \"\"\"This is the docstring for this method.\r\n \r\n# It describes what the method does, what are its calling conventions and\r\n# what are its side effects\"\"\"\r\n# self.value=self.value+1\r\n# return self.value\r\n# print (MyNumber.increment.__doc__)<\/pre>\n
ctrl+\/<\/code>.<\/p>\nComment out multiple lines in Pycharm<\/h3>\n
ctrl+shift+\/<\/code>\u00a0. To uncomment the lines, we just have to select the lines and then again press\u00a0ctrl+shift+\/<\/code>.<\/p>\nConclusion<\/h3>\n