{"id":119,"date":"2022-06-22T21:04:04","date_gmt":"2022-06-23T04:04:04","guid":{"rendered":"https:\/\/teknobilly.com\/blog\/?p=119"},"modified":"2022-06-22T21:25:59","modified_gmt":"2022-06-23T04:25:59","slug":"python-basics-in-100-days-of-code","status":"publish","type":"post","link":"https:\/\/teknobilly.com\/blog\/2022\/06\/22\/python-basics-in-100-days-of-code\/","title":{"rendered":"Python basics in 100 days of code"},"content":{"rendered":"\n

At work a funny thing happens. I love working with computers, I think I’m a lucky guy. At work though I have so many distractions that I can’t get work done. For every distraction it drains my attention on what I’m doing, and when it exceeds a certain level then I’m not very useful.<\/p>\n\n\n\n

When I go home and rest for a while, I’m drained, I don’t want to do much, it would be so easy to turn on the TV. Sometimes I go for a walk, but I’ll drag along, it’s been a long day and I just want to rest.<\/p>\n\n\n\n

The funny thing that happens, is that I go sit at the computer and do something as simple as work on some basic Python challenges and I find it rejuvenating. I find following along a good course like Dr Angela Yu’s 100 projects in Python<\/a> is a perfect blend of guided meditation and problem solving that it gets me out of that slump. Weird.<\/p>\n\n\n\n

Here are my notes from the day:<\/p>\n\n\n\n

Day 2 – Data Types<\/h1>\n\n\n\n

June 22, 2022 – Coding Rooms Exercises Day 2 (Lessons 1,2,3) Day 3 (1,2)
BMI-calculator.py<\/p>\n\n\n\n

We played around with strings. Numbers as strings. Typecasting strings to integers or floats.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

To declare a variable as a data type use:<\/p>\n\n\n\n

varname = int(5)<\/code>
But this will be overwritten when a new assignment
varname = input(\"New Value:\")<\/code>
Will change the data type back to a string, even if a number is entered.
So I need to validate the data type after an input.
varname = int(varname)<\/code><\/p>\n\n\n\n

Formatting strings<\/h2>\n\n\n\n

I thought I would be able to use printf style formatting, there is a Python way using the .format() method and there is a printf method. Kinda weird either way.<\/p>\n\n\n\n

age = input(\"What is your current age?\")\nage = int(age)\nyears_till_90 = 90 - age\nage_in_months = years_till_90 * 12\nage_in_weeks  = years_till_90 * 52\nage_in_days   = years_till_90 * 365<\/code><\/pre>\n\n\n\n
These next lines produce the same result. The python way and the old printf way. The Python way is a bit more friendly for type conversion.<\/p>\n\n\n\n
print('You have {} days, {} weeks, and {} months left.'.format(age_in_days, age_in_weeks, age_in_months))\n\nprint('You have %d days, %d weeks, and %d months left.' % (age_in_days, age_in_weeks, age_in_months))\n\nprint(f'You have {age_in_days} days, {age_in_weeks} weeks, and {age_in_months} months left.')  \n\/\/ this one is the most readable and likely the new standard.  (Note the 'f' )<\/code><\/pre>\n\n\n\n
Operators<\/h2>\n\n\n\n
The standard operators apply: + – \/ * == != < <= >= >
Logic operators are words: and, or<\/p>\n\n\n\n
maths<\/h2>\n\n\n\n
Standard operators built into python
rounding numbers round(23.2552, 2) will round two decimal places
modulo operator % 4 % 2 will result in 0. No remainder dividing 4 by 2. 5 % 2 will result 1
For more advanced commands like ceil, or floor, import the math module<\/p>\n\n\n\n
Day 2 Assignment 3 – BMI Calculator 2<\/h2>\n\n\n\n
I struggled to pass the tests at first, due to my spelling of slightly vs slighty, and almost invisible difference in the code when you are looking for syntax differences.<\/p>\n\n\n\n
\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"
I find following along a good course like Dr Angela Yu’s 100 projects in Python is a perfect blend of guided meditation and problem solving that it gets me out of that slump.    Weird.<\/p>\n","protected":false},"author":2,"featured_media":123,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"activitypub_content_warning":"","activitypub_content_visibility":"","activitypub_max_image_attachments":3,"activitypub_interaction_policy_quote":"anyone","activitypub_status":"","footnotes":""},"categories":[23,13],"tags":[28,27],"class_list":["post-119","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-hacking","tag-100daysofcode","tag-python","clear","fallback-thumbnail"],"jetpack_featured_media_url":"https:\/\/teknobilly.com\/blog\/wp-content\/uploads\/2022\/06\/20220622_211725.jpg","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/posts\/119","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/comments?post=119"}],"version-history":[{"count":2,"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/posts\/119\/revisions"}],"predecessor-version":[{"id":122,"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/posts\/119\/revisions\/122"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/media\/123"}],"wp:attachment":[{"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/media?parent=119"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/categories?post=119"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/teknobilly.com\/blog\/wp-json\/wp\/v2\/tags?post=119"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}