{"id":167,"date":"2018-01-25T03:11:31","date_gmt":"2018-01-24T20:11:31","guid":{"rendered":"http:\/\/class.ajarnsunny.com\/?page_id=167"},"modified":"2018-01-25T03:31:17","modified_gmt":"2018-01-24T20:31:17","slug":"for-and-while-loops-in-python","status":"publish","type":"page","link":"http:\/\/class.ajarnsunny.com\/?page_id=167","title":{"rendered":"For and While loops in Python"},"content":{"rendered":"
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Example 1 – for loop<\/strong><\/span>
This is an example of a for loop in python (file Example1<\/a>). The for loop repeats ten times the two indented lines under the colon.
for n in range(0,10):
\u00a0 print(n)
\u00a0 print(‘Today is a beautiful day’)
print(‘Program finished!’)<\/p>\n

This is the program output:<\/p>\n

\u00a0<\/p><\/div>\n\n\n\n \n

\n\n \n
\n \"ex01-02\" \n <\/div>\n \n \n \n <\/div>\n \n\n <\/div>\n \t\t<\/div>\n\t\t\n\t\t\n\t\t\n <\/div>\n \n <\/div>\n \n\t\t\t\n\t\t\n\t\t\t
\n\t\t\t\t
\n\n \n\t\t
\n
\n \n\n\n
\n \n

Example 2 – while loop<\/strong><\/span>
This is an example of a while loop in Python (file Example2<\/a>). The while loop repeats ten times the three indented lines under the colon.<\/p>\n

x = 0
while x < 10:
\u00a0 \u00a0 \u00a0print(x)<\/span>
\u00a0 \u00a0 \u00a0print(‘Today is a beautiful day’)<\/span>
\u00a0 \u00a0 \u00a0x = x + 1<\/span>
print(‘Program finished!’)<\/p>\n

The output is identical to the output of the previous example:<\/p>\n

\u00a0<\/p><\/div>\n\n\n\n \n

\n\n \n
\n \"ex01-02\" \n <\/div>\n \n \n \n <\/div>\n \n\n\n\n\n
\n \n

\u00a0<\/p>\n

Example 3 – infinite loop with while<\/strong><\/span>
This example shows an infinite loop (file Example3<\/a>). The program keeps repeating the two indented lines under the colon forever, or until the program is interrupted by pressing CTRL+C. The third print statement never gets executed, because the program never gets out from the while loop.<\/p>\n

while True:
\u00a0 \u00a0 \u00a0print(‘Today is a beautiful day’)<\/span>
\u00a0 \u00a0 \u00a0print(‘… and yesterday was too!’)<\/span>
print(‘This line will never be printed!’) # This line will never be printed
# because the program never get out
# from the while loop<\/p>\n

Below is the output. The program is interrupted pressing CTRL+C.<\/p><\/div>\n\n\n\n \n

\n\n \n
\n \"infloop\" \n <\/div>\n \n \n \n <\/div>\n \n\n <\/div>\n \t\t<\/div>\n\t\t\n\t\t\n\t\t\n <\/div>\n \n <\/div>\n \n\t\t<\/div>\n","protected":false},"excerpt":{"rendered":"

Example 1 – for loopThis is an example of a for loop in python (file Example1). The for loop repeats ten times the two indented lines under the colon.for n in range(0,10):\u00a0 print(n)\u00a0 print(‘Today is a beautiful day’)print(‘Program finished!’) This is the program output: \u00a0 Example 2 – while loopThis is an example of a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-167","page","type-page","status-publish","hentry","has-post-title","has-post-date","has-post-category","has-post-tag","has-post-comment","has-post-author",""],"_links":{"self":[{"href":"http:\/\/class.ajarnsunny.com\/index.php?rest_route=\/wp\/v2\/pages\/167"}],"collection":[{"href":"http:\/\/class.ajarnsunny.com\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/class.ajarnsunny.com\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/class.ajarnsunny.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/class.ajarnsunny.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=167"}],"version-history":[{"count":5,"href":"http:\/\/class.ajarnsunny.com\/index.php?rest_route=\/wp\/v2\/pages\/167\/revisions"}],"predecessor-version":[{"id":179,"href":"http:\/\/class.ajarnsunny.com\/index.php?rest_route=\/wp\/v2\/pages\/167\/revisions\/179"}],"wp:attachment":[{"href":"http:\/\/class.ajarnsunny.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}