{"id":2203,"date":"2020-03-18T16:04:40","date_gmt":"2020-03-18T16:04:40","guid":{"rendered":"https:\/\/www.h2kinfosys.com\/blog\/?p=2203"},"modified":"2020-04-07T18:28:53","modified_gmt":"2020-04-07T12:58:53","slug":"write-first-python-program-hello-world","status":"publish","type":"post","link":"https:\/\/www.h2kinfosys.com\/blog\/write-first-python-program-hello-world\/","title":{"rendered":"Write your first python Program | Hello World"},"content":{"rendered":"

In the previous tutorial, we had created a project with the name\u00a0 \u201cHelloWorld\u201d. Now we learn how to write the first Python Program<\/span><\/p>\n

\"\"<\/p>\n

Step 1: <\/b><\/h3>\n

Click on the file on the top left of the PyCharm editor and select new as shown in the editor below.\u00a0<\/span><\/p>\n

\"\"<\/p>\n

Step 2: <\/b><\/h3>\n

Then select \u201cPython file\u201d as shown below.<\/span><\/p>\n

\"\"<\/p>\n

Step 3: <\/b><\/h3>\n

write the name of the file \u201cHelloWorld\u201d and press enter.<\/span><\/p>\n

\"\"<\/p>\n

Step 4: <\/b><\/h3>\n

Now you have the space to write your first program. Write \u201cprint(\u201chello world\u201d)\u201d<\/span><\/p>\n

\"\"<\/p>\n

Step 5: <\/b><\/h3>\n

Right-click on the white space and menu will be shown.<\/span><\/p>\n

\u00a0Then select \u201cRun \u2018HelloWorld\u2019\u201d<\/span><\/p>\n

\"\"<\/p>\n

Step 6: <\/b><\/h3>\n

Below a terminal will open and the output of the program will be shown.<\/span><\/p>\n

\"\"<\/p>\n

Congratulations you have successfully written your first program.<\/b><\/p>\n

Rectangle Example<\/b><\/h2>\n

Now let us see how we can simply draw a rectangle using <\/span>print() <\/b>statement. Python executes the code line by line. We are going to use \u2018*\u2019 to print the rectangle. Simply write the program as shown below.<\/span><\/p>\n

\"\"<\/p>\n

Then repeat <\/span>step 5<\/b> to run the program.\u00a0<\/span><\/p>\n

You have successfully drawn the rectangle.<\/span><\/p>\n

\"\"<\/p>\n

In the upcoming tutorials, we will see how we can reduce the repetitions of writing the same lines of code.<\/span><\/p>\n

 <\/p>\n

How to print blank lines<\/b><\/h2>\n

Python allows three ways to print blank lines.<\/span><\/p>\n

    \n
  1. print()<\/span><\/li>\n
  2. print(\u201c \u201d)<\/span><\/li>\n
  3. print(\u201cwrite backward slash n at end of text\\n\u201d)<\/span><\/li>\n<\/ol>\n

    Let us try all three ways to print blank lines.
    \n<\/span>Line 1 and 2 have no blank space between them.
    \n<\/span>Line 3 and 5 prints a blank space.
    \n<\/span>Line 6 uses \u201c\\n\u201d at the end to print the blank space.<\/span><\/p>\n

    \"\"<\/p>\n

    Use of end in print()<\/b><\/h2>\n

    As the print is a function, we can pass an \u201cend\u201d optional parameter. If you don\u2019t understand parameters don\u2019t worry, you will understand in the upcoming function tutorials.\u00a0 \u201cend\u201d is used to tell the print statement how we want to end the print line. In the previous examples, we used the default end parameter which automatically end the line.<\/span><\/p>\n

     <\/p>\n

    Let\u2019s understand with an example.<\/span><\/p>\n

    Line 1 and 2 are simple print statements as we use print statement previously.
    \n<\/span>Line 3 prints a blank line.
    \n<\/span>Line 4 uses end=\u201d \u201cmeans \u201cend this print line with a blank whitespace not with blank line\u201d.
    \n<\/span>Line 7 uses end=\u201d—” means \u201cend this print line with —\u201d.\u00a0<\/span><\/p>\n

    See the difference in the output.<\/span><\/p>\n

    \"\"<\/p>\n","protected":false},"excerpt":{"rendered":"

    In the previous tutorial, we had created a project with the name\u00a0 \u201cHelloWorld\u201d. Now we learn how to write the first Python Program Step 1: Click on the file on the top left of the PyCharm editor and select new as shown in the editor below.\u00a0 Step 2: Then select \u201cPython file\u201d as shown below. […]<\/p>\n","protected":false},"author":1,"featured_media":2411,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[342],"tags":[438,437,433,436],"class_list":["post-2203","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python-tutorials","tag-helloworld","tag-program","tag-python","tag-write-first-python-program"],"_links":{"self":[{"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/posts\/2203","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=2203"}],"version-history":[{"count":0,"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/posts\/2203\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/media\/2411"}],"wp:attachment":[{"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/media?parent=2203"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/categories?post=2203"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.h2kinfosys.com\/blog\/wp-json\/wp\/v2\/tags?post=2203"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}