Lab #5 - list, control, loop practice (gowithflow)
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Remember it is just the sixth week today. Let’s start working with Lab 5. I know it is very hard and tiring but keep in mind that we are just learning the basics.
Have you ever used Instagram? It is a one of the most popular programs made by Python. And I’m pretty sure one day we can develop such a service. Therefore, do not stop practicing and let’s start today’s lab assignment.
At this time, we will practice
while and so on which we already have learned before. The fundamental structure is the same as the
Lab #2 - basic_operations. There are various functions and you need to edit and correct those fit for its purpose.
It is getting harder but do not forget that it is the basic level and I want you to enjoy doing this Lab.
Assignment template file download
First of all, download assignment template file. Enter the below address on the address bar of Chrome or Explorer.
Click View Raw or Download button for downloading. Or click Lab 5 – download link . It will start download automatically. Move the downloaded lab_5.zip file to work folder and start the assignment after unzip the file.
Functions need to be edited
What you have to do in this lab assignment are editing the whole
main() function according to the purpose of the program like Lab #3 and Lab #4, and composing simple functions by editing unit functions such as Lab #5 and #2.
Since the logic is getting hard, and we cannot make a program only by practicing simple functions, Lab is getting complex. I prepared a lot of Labs for improving your ability better Don’t get upset. Just... i loved you too much!
Following list are functions need to be edited.
|sum_of_list||Returns the sum of list element by receiving the list, consists of number values.|
|merge_and_sort||Returns sorted and merged list from received two lists each consisted with numbers or letters.|
|delete_a_list_element||Receives a list and data type value. If received value is in the list, return the list removed received value. Else, received value is not in list, return Integer 0.|
|comparison_list_size||Receives two lists and compare length of list. return the bigger list.|
|odd_even_check||Receives two integer type values and returns the string 'Even' or ‘Odd’ by sumation of two values.|
|find_smallest_value||Receives a list consisting of number type values. Return the smallest value.|
|binary_converter||Receives positive integer type value and returns values converted to a binary number in string type.|
|number_of_cases||Receives a list consisting of numbers or strings. Returns all the number of cases of combining elements values in corresponding list. Deletes all duplicated combination.|
Test after editing
Execute tests after adjusting or editing each function according to its purpose. From now, there is no a test code as a helper. Therefore, the student needs to make and execute an edited code on
python shell or
main function by themselves. The samples test codes are commented in each function.
Things need to know before start editing
There are things look difficult before you actually do. For example, merging lists.
a = [1, 2, 3, 4, 5] b = ['a', 'b', 'c', 'd', 'e'] c = a + b
Or, you can merge b list on a list using
In order to see whether there is a specific value in list, you can use an expression such as
if value in list_data:. It is a syntax to verify whether values are included in variable
list_data. Of course, as it is an if statement, you need to write an executive command below using
indentation. You can write a code as below.
result =  if not(value in list_data): result.append(value)
The command add
value to list
result if there are no
value in list
list_data. You must understand it before going ahead.
For deleting a
specific value in a list, you can use
list_data.remove(specific value). In the command statement,
list_data means the name of variable in list type and
specific value means the value want to delete. For example, if you want to delete
0, you just put
Likewise, you can add a value on a list by using
list_data.append(adding value). To find the smallest value in list, use
min(list_data). To find how many specific value in list, use
list_data.count(specific value). Those are required to complete function
All lab assignment has completed. Let’s submit it.
rand enter cmd and click OK.
- Change directory to working folder.
- Enter below code on cmd window.
After entering above command, you will see the screen as below with Login ID and Password. Enter Login ID and password which we used for registering http://theteamlab.io website.
== Submmting solutions | gowithflow.py Login ID: Password :
-------------------- | ---------- | -------------------- Function Name | Passed? | Feedback -------------------- | ---------- | -------------------- find_smallest_value | PASS | Good Job sum_of_list | PASS | Good Job comparison_list_size | PASS | Good Job binary_converter | PASS | Good Job merge_and_sort | PASS | Good Job discount_price | PASS | Good Job odd_even_check | PASS | Good Job number_of_cases | PASS | Good Job delete_a_list_element | PASS | Good Job -------------------- | ---------- | --------------------
There are still people who submit their assignment without testing the corresponding codes. Sometimes, we can see an
unsupported error: it means your code cannot be analyzed. What a shame of yourself! Before execute the above command, please making tests codes several times by yourself.
Some people may feel very difficult while doing this assignment. This is because it is the first time we start working with logics. However, most computers work by logics. Therefore, it is necessary to complete the assignment by yourself to grasp the principles even though it is very complicate. This week there are only two Labs. So let’s do just one more assignment.
Human knowledge belongs to the world - from movie 'Password' -