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## Python: Grade_2 Math Questions V1

Learning : Python, Math
Subject: Math Questions for Grade-2 V.1

[NOTE: To keep the code as simple as we can, We WILL NOT ADD any user input Varevecations. Assuming that our user will Enter the right inputs.]

In the process of studing with/for my kids [specialy Math] i always need to give them some Questions in [+ -], I need to write the Questions on a paper then they solve it and i check the answers. So I thought if I create an app to solve this Problem.
Application to Do What?

• Select Two random numbers from a given range.
• Select a Math operator [+ -].
• Writing the Question on the Screen.
• Comparing the user input with the real answer.
• Writing a message on the screen acoording to the user answers.

• Start Play the Game. [All Math Lessons]
• Re-set the Numbers Range.
• Register New Kid to Play.
• Questions Like: x (+ -) y = ??
• Questions Like: x (+ -) ?? = y
• Questions Like:
x
y (+ -)
_______________
??

• Exit.
• In this Version (V.1) of the application, there will be some limitations on the Questions Difficulties, Number ranges and type of Questions.

Start Coding
Here is the code for the Main Menu.

``` # Code for Main Menu

os.system('clear')
print('\n\n\t This is a Math Revision Game.',version)
print('\t --------------------------------------------')

print('\n\n\t')
print('\t 1. Start Play the Game. [All Math Lessons]')
print('\t 2. Re-set the Numbers Range.')
print('\t 3. Register New Kid to Play.')
print('\t \n ')
print('\t 5. Questions Like:   x (+ -) y = ?? \n')
print('\t 6. Questions Like:   x (+ -) ?? = y \n')
print('\t 7. Questions Like:      x','\n\t\t\t\t y   (+ -)','\n\t\t\t     ___________')

print('\t ')
print('\t 9. Exit.')

user_select = input ('\n\n\t Select from the Menu. > ')

return user_select

```

Get the Numbers Range
In this Function the user will be asked to Enter the Number range as from and to, we will check if the user Enter a valid input, No space, No Alphabetics.

``` #  Get the Numbers Range

def get_numbers_range () :

"""
Function to get the Number range from the user, we will check if the user Enter
a valid input, No space, No Alphabetics.

return:
nfrom: is the lower number range.
nto  : is the upper number range.
"""

nfrom = check_user_input("\t Enter the Lower Range Number > ","\t ... You Need to Enter a Lower Range Number.") #(input('\n\t Enter the Lower Range > '))
nto = check_user_input("\t Enter the Upper Range Number > ","\t ... You Need to Enter an Upper Range Number.")

if (int(nfrom)) > (int(nto)) :
nfrom, nto =  nto, nfrom

return int(nfrom), int(nto)

```

Check user input
With each user input we will call this Function with two messages, statement message will be the one to gaid the user to What is need to Enter, error message will be display if the user input something wrong or not expected. Then the Function will return back the user input.

``` # check_user_input

def check_user_input(statment_m,error_m):
"""
Function to check on the user input if it is a valid or not.

Arguments:
statmen_m: will be the one to gaid the user to What is need to Enter
error_m: will be display if the user input something wrong or not expected.

Return:
uinput

"""
while True :
print(statment_m,end="")
uinput = input()
if ((uinput) in [" ",""] or (not uinput.isnumeric()) or ((uinput) in schar) or ((str(uinput).isalpha()))):
print(error_m)
else:
break
return uinput

```

Get the Kid Name
A small and short Function to return the user/Kid Name.

``` # Get the Kid Name

def get_kid_name () :

return input('\n\t Enter Your Name > ')

```

Setting and Variabls
This is the first upper part of the application, we just import the random and os also we set some variables.

``` # Variables

import random, os, operator

score1 = 0
good = ['Correct','You are Right', 'Well Done..','Nice..','Excellent..','Amazing..','Good job',' YES .. Keep it up .. ','So Proud of You','Yes .. Another Point for You',]
bad = ['Wrong ..','Sorry .. No!','Try Your Best','No!','No..Think Harder','ooops .. No','Not this Time']
oper_dict = { '+': operator.add, '-': operator.sub,} # '*': operator.mul, }
schar = "@_!#\$%^&*()?/\|}{~,.:'"

nfrom = 0
nto = 0
name = 0
version = 'V.10.2022.R1'
```

Math Question Type-1
This Function will ask the user 10 Questions of Math according to the Numbers Range were the question will looks like: X [+ -] Y = ??, then if the answer is right good message will display on the screen.

``` #  Math Question Type-1 (X [+ -] Y = ??)

def Math_G2_type_1():
os.system('clear')
score =0
for q in range(0,10):
n1 = random.randint(nfrom,nto)
n2 = random.randint(nfrom,nto)
op = random.choice(list(oper_dict.keys()))

if op == '-' :
if n1 ')
print('   ', n1, op ,n2,end='')

ans = check_user_input(" = ","  You Need to Enter an Answer .. ")

if  int(ans) == oper_dict[op](n1,n2):
print('   ',random.choice(good),'   .. ')
score = score +1
else:

return score

```

Math Question Type-2
This Function will ask the user 10 Questions of Math according to the Numbers Range were the question will looks like: X [+ -] ?? = Y, then if the answer is right good message will display on the screen.

``` # Math Question Type-1 (X [+ -] ?? = Y)

def Math_G2_type_2():
os.system('clear')
print('\n\n\t ', name ,' Now try to solve these once\n ')
score =0
for q in range(0,10):
n1 = random.randint(nfrom,nto)
n2 = random.randint(nfrom,nto)
op = random.choice(list(oper_dict.keys()))
if op == '-' :
if n1 < n2 :
n1,n2 = n2,n1

print('\t\t   ',n1)
print('\t\t   ',n2,' ',op)
print('\t\t __________')
ans = int(input('\t\t    '))

if ans in [" ",""]:
else:
if ans == oper_dict[op](n1,n2):
print('   ',random.choice(good),'   .. \n\n')
score = score +1
else:

return score

```

Math Question Type-3
This Function will ask the user 10 Questions of Math according to the Numbers Range were the question will looks like:

X
Y [+ -]
__________
???
then if the answer is right good message will display on the screen.

``` #

def Math_G2_type_3 ():
os.system('clear')
print('\n\n\t ', name ," let's try this.")
print('\t Complete with correct number.\n')
score = 0
for q in range(0,10):
n1 = random.randint(nfrom,nto)
n2 = random.randint(nfrom,nto)
op = random.choice(list(oper_dict.keys()))
if op == '-' :
if n1  n2 :
n1,n2 = n2, n1

print('\t ',n1,op, ' ______ = ', n2)

if ans in [" ",""]:
else:
if n2 == oper_dict[op](ans,n1):
print('   ',random.choice(good),'   .. \n\n')
score = score +1
else:
return score

```

Application Body
In the Application Body itself I use a while loop to call and detect the User input from the menu and using that input to call the corresponding Function. All the codes and functions also the application Body code is on the Source file and can be Downloaded.

I test the code and RUN the app several times, but errors can be found, so next version of this Application will solve any errors also will add more Math Questions Type.

..:: Have Fun with Coding ::.. 🙂

## Python Project: Properties Maintenance System P12

Subject: Writing a Full Application for Properties Maintenance System [Delete Maintenance Request]
Learning : Python, Math, SQL, Logeic

[NOTE: To keep the code as simple as we can, We WILL NOT ADD any user input Varevecations. Assuming that our user will Enter the right inputs.]

In this part we will continue write the Functions in Maintenance Request Service. Here we will write the Function to Delete a Maintenance Request.

This is very easy and short Function, first we will list all the requests by calling the def show_maintenance_request, after that we will ask the user to Select the ID of the request to be Delete.

Validation
We will use simple validation code on the User input for the following aspects:

• If the user input E to Exit.
• If the user input digits or Not.
• If the ID is available in the system/Database.
• If the user input Y to confirm the Deleting prosses.

So if the user input pass all the Validations, and he confirm the Deleting, the Record will be Deleting using the following SQL Command:
c.execute (“delete from maint_request_t where m_r_id ={}”.format(int(delete_this)))
db_conn.commit()

We done with this part, Next we will write a code to change a request status.

:: PMS Parts ::

 Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Part 7 Part 8 Part 9 Part 10 Part 11 Part 12 Part 13 Part 14

..:: Have Fun with Coding ::.. 🙂

## Python Project: Properties Maintenance System P11

February 20, 2022 1 comment

Subject: Writing a Full Application for Properties Maintenance System [Show Maintenance Request]
Learning : Python, Math, SQL, Logeic

[NOTE: To keep the code as simple as we can, We WILL NOT ADD any user input Varevecations. Assuming that our user will Enter the right inputs.]

In this part we will continue write the Functions in Maintenance Request Service. Here we will write the Function to Show Maintenance Request.

Show all Request In this Function we will display all the Properties we have in the system, then the user will Select the ID of the Property, after that we will display all Maintenance Jobs that we have in the system (Maintenance for); again the user need the Select the Job ID and if the required job is not in the list the user need to go-back and add it to the system first. After that the user will Select current Job-Status [also if not in the system we need to add it], then entering the Date of starting the Maintenance, finally the user can write any Notes or just press enter to save the request. With any question above the user can Exit the function by interning [E].

Here are some code sample..
print(‘ ‘*6,’ID’,’ ‘*3,’Property ID’,’ ‘*5,’Maintenance Date’,’ ‘,’Maintenance For’,’ ‘*7,’Job Status’,’ ‘*12,’Note’)
print(‘ ‘*4,’-‘*120)

Code to fetch-all data in the Maintenance Request Table.
c.execute (“select * from maint_request_t “)
dataset = c.fetchall()

To Get the Property Type, we call our get_lookup_values Function..
prop_type_id = get_lookup_values(‘properties_t’,’p_id’,dataset[each][1])
p_type_name = get_lookup_values(‘prop_type_t’,’pt_id’,prop_type_id[0][2])

To save the time, all the code is available in the Download Page.

:: PMS Parts ::

 Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Part 7 Part 8 Part 9 Part 10 Part 11 Part 12 Part 13 Part 14

..:: Have Fun with Coding ::.. 🙂

## Python Project: Properties Maintenance System P10

Subject: Writing a Full Application for Properties Maintenance System [Property: Delete a Record]
Learning : Python, Math, SQL, Logeic

[NOTE: To keep the code as simple as we can, We WILL NOT ADD any user input Varevecations. Assuming that our user will Enter the right inputs.]

In this part we will write the Following:
1. Writing the Maintenance Request Menu.
2. Writing the Functions header for Four Functions:

• Edit a Maintenance Request.
• Delete a Maintenance Request.
• Show Maintenance Requests.

3. Writing the code for the first Function: Add a Maintenance Request.
4. Writing the code to Validate the Date.[The code will be coped in from my Archive]

First: Maintenance Request Menu: We will use our standard template in all application we write it, so here is the code ..

And here is the header of each Functions:

pass

def edit_maintenance_request() :
pass

def delete_maintenance_request() :
pass

def show_maintenance_request(inside) :
pass

First Function: def add_maintenance_request() : In this Function we will ask the user to select the ID of the Property that need Maintenance also to select the ID of Maintenance Job requered. If the Maintenance Job is Not Available in the List, then the user MUST go first to add it in the system, then come back and select it. During this Function coding we will use two Functions we have in this application [check_availability and show_lookup_data] also we will use the [Date Validation] Function we have develop some time ago [Click to Read the Post Ver.2019] {Updated Ver. used in this code.}

Here is a sample code for Selecting the Maintenance Job Requiered.

``` # Selecting the Maintenance Job Requiered

print('\n\t Select an Item from the List for the Maintenance Job Requiered:\n')
show_lookup_data('Yes' ,'main_job_list_t', 'ml_id')
main_j_id = input ('\n\t Enter the ID of the Maintenance Job. [E to Exit] > ')
if main_j_id in ['e','E'] :
input('\n\t You Select to Exit from the Function.. Press any Key .. ')
return
if	(check_availability('main_job_list_t', 'ml_id', int(main_j_id)) == None ) :
input('\n\t The ID is NOT Available. Press any Key .. ')
return
```

After collecting all information from the user, we will Insert/Add the data into the database using this SQL Statement..

c.execute (“INSERT INTO maint_request_t (p_id , maint_for, date_time, job_s_id, notes) VALUES(:p_id , :maint_for, :date_time, :job_s_id, :notes)”,{“p_id”:mainte_req_id , “maint_for”:main_j_id, “date_time”:main_date, “job_s_id”:job_st_id, “notes”:the_note})
db_conn.commit()

Now we have the ability to add a Maintenance Request to our system.

NOTE: If you Download this Part you MUST Run the Option 82 (82. Delete the Data-Base and Start Again.) from the Main Menu to do the following Updates:

• Updates some attributes in the database level.

## Highly recommended ##

In Part-11 In the Next Part, we will write a function to show all Maintenance Request in the system.

:: PMS Parts ::

 Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Part 7 Part 8 Part 9 Part 10 Part 11 Part 12

..:: Have Fun with Coding ::.. 🙂

## Python Project: Properties Maintenance System P9

Subject: Writing a Full Application for Properties Maintenance System [Property: Delete a Record]
Learning : Python, Math, SQL, Logeic

[NOTE: To keep the code as simple as we can, We WILL NOT ADD any user input Varevecations. Assuming that our user will Enter the right inputs.]

In this part we will write a Function to Edit a record on the database, first we will call the def show_property(inside) to display all the records on the screen and ask the user to Select [enter] the ID of the Property to be Edited. Next we will Display the Record again on the screen and ask the user to Confirm the Editing by entering [Y] and any things else will be as [Don’t Edit]. Here is the code ..

Next we will ask the user about each attributes in the system, so the user will enter the new data (update the current one) or just press enter to keep the existed data. Here is a part of the code ..

After That we will check on each user input for the attributes, if the user change/Edit the data [did not press enter] then we run an SQL command to alter the database. Here are part of the code we use ..

Now we have an updated record, so we will show a message to inform the user that the records been updated.

NOTE: If you Download this Part you MUST Run the Option 82 (82. Delete the Data-Base and Start Again.) from the Main Menu to do the following Updates:

• Updates some attributes in the Database Level.

## Highly Recommended ##

In Part-10 the Next Part, we will add the Function to Backup our data .

:: PMS Parts ::

 Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Part 7 Part 8 Part 9 Part 10 Part 11 Part 12

..:: Have Fun with Coding ::.. 🙂

## Python Project: Properties Maintenance System P8

Subject: Writing a Full Application for Properties Maintenance System [Property: Delete a Record]
Learning : Python, Math, SQL, Logeic

[NOTE: To keep the code as simple as we can, We WILL NOT ADD any user input Varevecations. Assuming that our user will Enter the right inputs.]

In this part we will write a Function to Delete a record from the database, first we will call the def show_property(inside) to display all the records on the screen and ask the user to Select [enter] the ID of the Property to be Deleted. Next we will Display the Record again on the screen and ask the user to Confirm the Deleting by entering [Y] and any things else will be as [Don’t Delete]. Here is the code ..

.. End of Part 8 ..

NOTE: If you Download this Part you MUST Run the Option 82 (82. Delete the Data-Base and Start Again.) from the Main Menu to do the following Updates:

• Update the properties_t Table (Adding the number of BathRooms)
• Update on create_tables Function.
• Update on insert_zero_records Function.

If you did this in last part (6) then you don’t need to do it again

In Part-9 In the Next Part, we will write the Function to Edit a record of a selected Property.

:: PMS Parts ::

 Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Part 7 Part 8

..:: Have Fun with Coding ::.. 🙂

## Python Project: Properties Maintenance System P7

Subject: Writing a Full Application for Properties Maintenance System [Property: Showing the Records in Main property Table]
Learning : Python, Math, SQL, Logeic

[NOTE: To keep the code as simple as we can, We WILL NOT ADD any user input Varevecations. Assuming that our user will Enter the right inputs.]

After adding Records to the Main Property Table, we need to display the records on the screen. So now in this part (Part -7) we will write a function to display all the records. The Function name will be def show_property() the function is not taking any attribute and is Not returning any things. First we will print-out the Table-Header then we will run an [SQL: select * from table-name] command to fetch all the records, then will [for loop] and test-format to print all the records on the screen. Here is the Code ..

After i display the records, I notes that the Address-Column needs more than one row (in some cases), and it miss the line formating, so I wrote a function and call it def warp_text(tex,warp_on,nl_space) the function takes three arguments,
the test: it the text/string you want to print.
warp_on: is a number of character before the new-line.
nl_space: is the number of white-character in the new-line.
Here is the Code ..

``` # Function to warp

def warp_text(tex,worp_on,nl_space) :
c = 0

for t in range (len(tex)) :
print(tex[t],end="")
c += 1
if c == worp_on :
print('\n', ' '*nl_space, end="")
c = 0

```

End of Part 7

NOTE: If you Download this Part you MUST Run the Option 82 (82. Delete the Data-Base and Start Again.) from the Main Menu to do the following Updates:

• Update the properties_t Table (Adding the number of BathRooms)
• Update on create_tables Function.
• Update on insert_zero_records Function.

If you did this in last part (6) then you don’t need to do it again

In Part-8 In the Next Part, after adding and showing the records we will write the Function to Delete a record from the Table.

:: PMS Parts ::

 Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Part 7 Part 8

..:: Have Fun with Coding ::.. 🙂

## Python Project: Properties Maintenance System P6

Subject: Writing a Full Application for Properties Maintenance System [Add New Property Functions]
Learning : Python, Math, SQL, Logeic

[NOTE: To keep the code as simple as we can, We WILL NOT ADD any user input Varevecations. Assuming that our user will Enter the right inputs.]

This is Part-6 of an Application to Manage Properties Maintenance in this part we will writ a Function to Add New Property to our System.

This May be the longest Function in our system, we will ask the user to Enter the Data for a New Property and then saving it to the DataBase.

Simple Validation:
In this Function we will do a very simple check on the user inputs, and will keep this as simple as we can so the code will not be long. Sample on this Validation will be if the user enter [E or e] we will exit the process and stop the Function.

Code Part Sample:
In asking the user to select the property Type were we are using a look-up table for the Property Types, we will use the Function def get_lookup_values(tname,t_id,key_id): were we passing the table-name, the ID column name and the ID of the data we want to retrieve. Another code part we may see is checking the user input of the p_type_id (MUST BE NUMERIC)

if (p_type_id.isalpha()):
input(‘\n You Must Enter a Numeric Value. Press any key to Try Again .. > ‘)
.
Also we can see the part of the code that will make sure that the user did not enter the [E to Exit] (if the user enter E we will display a message then will return to the Menu-Page)
p_bedrooms = input(‘\n Enter the Number of Bedrooms in the Property. [E to Exit] > ‘)
if p_bedrooms in [‘e’,’E’] :
input (‘\n You Select to Exit .. Press any Key. >’)
return

Saving the Record:
After the user Enter all the data we need we will display it on the screen and asking for a confirmation to Save the record, If the user Enter [Y] as Yes, we will use the “INSERT INTO properties_t …” SQL command to save the Record to the dataBase.
Here is a screen-shot of the all code of the Function,

NOTE: If you Download this Part you MUST Run the Option 82 (82. Delete the Data-Base and Start Again.) from the Main Menu to do the following Updates:

• Update the properties_t Table (Adding the number of BathRooms)
• Update on create_tables Function.
• Update on insert_zero_records Function.

In Part-7 In the Next Part we will write the Function to Display/Show all the Records of the Main-Property-Table on the screen.

:: PMS Parts ::

 Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Part 7 Part 8

..:: Have Fun with Coding ::.. 🙂

## Python Project: Properties Maintenance System P5

Subject: Writing a Full Application for Properties Maintenance System [Maintenance Job List]
Learning : Python, Math, SQL, Logeic

[NOTE: To keep the code as simple as we can, We WILL NOT ADD any user input Varevecations. Assuming that our user will Enter the right inputs.]

In Part-5 We will writing the Functions to Manage the Maintenance Job List Functions. Maintenance Job List is a list of things that the Customer/ Renter may ask to repair [if Damage]
such as the AC, TV, Lights or water-system in the property. In this Part, we will write three Function so we can Add, Edit and Delete from this list. So let’s start with Adding to Maintenance Job List.

Once the user select this option from the Menu, then the prompit will ask to enter a New Maintenance Job to the List and the SQL [INSERT INTO] command the Database will be updated with one record. Here is the code ..

Edit Maintenance Job List:
In this Function the user will see all the Maintenance Jobs we have in the DataBase and will be asked to select one to be Edited [by selecting it’s ID], we will check the availability of the ID then will waite to Enter the correct one. Here is the code that will Update one of the Jobs item.

Delete from Maintenance Job List:
Last Function today will be to Delete from the list. Here also we will list all the Maintenance Jobs we have in the DataBase and will be asked to select one to be Deleted [by selecting it’s ID], we will check the availability of the ID then will ask the user to confirm Deleting. Code is here ..

End of Part-5, this was the last Function in this post, Now we have all Functions to works with the look-up tables in our application.

In Part-6 In coming post we will continue writing Functions that will Add records to the system.

:: PMS Parts ::

 Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Part 7 Part 8

..:: Have Fun with Coding ::.. 🙂

## Python Project: Properties Maintenance System P4

Subject: Writing a Full Application for Properties Maintenance System [Property Type Functions]
Learning : Python, Math, SQL, Logeic

[NOTE: To keep the code as simple as we can, We WILL NOT ADD any user input Varevecations. Assuming that our user will Enter the right inputs.]

In Part-4 We will writing the Functions to Manage the Maintenance Property Types Functions. Property Type is a Look-up Table that will help the user to select some values, as other Look-up Tables, in Part-1 when we set-up the application and select to create the database we Insert some data in to it. Now will will write three Functions to Add New Property Type, Edit a Property Type and Delete a Property Type from the DataBase.
Starting with Add New Property Type, We will ask the user to write the New Property Type then will run the SQL command to Insert it into the data-base.. Hear is the Code ..

Now we will write the Edit Function we if we have any error in the typpiing of the Property Type we can correct it using this Function.. Fisr we will display all the Properies Type we have, asking the user to Select an ID of the one to-be Edit, then we will check for the availability of the user input [simple valitation proccess] and will ask the user to Insert the correct Value/Text to replace the exsist one. Here is the code ..

The Last Function in this part is to Delete a selected Property Type, in this Functioin we will List down all the Property Types we have in the data-base and ask the user to select the ID for the one to be deleed, then we cal the SQL commands that will Delete the record. Here is the code ..

.. DONE WITH PART – 4 ..

In Part-5 In coming post we will continue writing Lookup Table Functions to Add, Edit and Delete there data.

:: PMS Parts ::

 Part 1 Part 2 Part 3 Part 4 Part 5 Part 6 Part 7 Part 8

..:: Have Fun with Coding ::.. 🙂