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d7860a4
create a dir for my exercises and a .py file for exercise 1
HassanOHOsman Dec 2, 2025
c6edd33
provide 2 solutions to exercise 1
HassanOHOsman Dec 2, 2025
bbca608
rename file
HassanOHOsman Dec 2, 2025
597f47e
create file to exercise 1
HassanOHOsman Dec 2, 2025
adec5ea
add exercise 1 question
HassanOHOsman Dec 2, 2025
c202adf
answer to Q 1 of exercises
HassanOHOsman Dec 2, 2025
4917fe7
create venv
HassanOHOsman Dec 2, 2025
ab0e5d5
install mypy
HassanOHOsman Dec 2, 2025
b0143fd
create a test file to test some py code
HassanOHOsman Dec 2, 2025
5c7d52c
adding type annotation to the function def to avoid getting errors wh…
HassanOHOsman Dec 2, 2025
6803aed
re-add type annotation to function def
HassanOHOsman Dec 2, 2025
dd86ef8
delete the test file
HassanOHOsman Dec 2, 2025
9df4222
create a .py file for exercise 3
HassanOHOsman Dec 2, 2025
bf4f92c
type annotate open_account function return
HassanOHOsman Dec 3, 2025
0b58dee
type anno. open_account arguments
HassanOHOsman Dec 3, 2025
e133ed6
add a return line to function open-account
HassanOHOsman Dec 3, 2025
0692d80
type anno. return for function sum_balance
HassanOHOsman Dec 3, 2025
93e8215
type anno. the argument accounts of function sum_balances
HassanOHOsman Dec 3, 2025
eaa2fa4
type annotate the argument and return for function format_pence_as_st…
HassanOHOsman Dec 3, 2025
b7f3ae2
adding the missing third argument: "balances" to the 2 open_account …
HassanOHOsman Dec 3, 2025
530b650
updated all the int values to float
HassanOHOsman Dec 3, 2025
b55e70c
updating type anno. and making a few changes
HassanOHOsman Dec 3, 2025
ccce3db
correcting syntax error in sum_balances func and the name of the 1st …
HassanOHOsman Dec 3, 2025
bb87b72
fixed bugs in the 2 open_account fuc calls at the bottom
HassanOHOsman Dec 3, 2025
ce70769
corrected the name bug for the format_pence_as_string call at the bottom
HassanOHOsman Dec 3, 2025
a70ac33
create .py file for exercise 4
HassanOHOsman Dec 3, 2025
550f320
add solution to problem 4
HassanOHOsman Dec 3, 2025
ee4aae2
create .py file for exercise 5
HassanOHOsman Dec 3, 2025
dc9fa85
add a question to problem 5
HassanOHOsman Dec 3, 2025
23cf5c5
create a new function as per exercise 5 requirments
HassanOHOsman Dec 3, 2025
a6564a3
explaing the 2 errors that associated with the new created function
HassanOHOsman Dec 3, 2025
9485080
create .py file to store exercise 6 work
HassanOHOsman Dec 3, 2025
b86a9a4
add solution to Q 6
HassanOHOsman Dec 3, 2025
dec7dc1
create .py file to store answers for Q7
HassanOHOsman Dec 3, 2025
6306f1a
add the Q
HassanOHOsman Dec 3, 2025
ddaf3fc
update the Q
HassanOHOsman Dec 3, 2025
421d9b1
re-order code
HassanOHOsman Dec 3, 2025
ecacbcd
importing the date module from datetime library
HassanOHOsman Dec 3, 2025
0a0fc91
adding "date_of_birth" attribute to "Person" class
HassanOHOsman Dec 3, 2025
a7955e3
updating addition of DOB as attribute
HassanOHOsman Dec 3, 2025
079a209
removing the age attribute from Person class
HassanOHOsman Dec 3, 2025
64fa3d7
updating the date_of_birth type as date
HassanOHOsman Dec 3, 2025
0621a7a
updated is_adult function to incorporate the new attribute
HassanOHOsman Dec 3, 2025
c86cb07
update to the is_adult function
HassanOHOsman Dec 3, 2025
6e8289f
na
HassanOHOsman Dec 3, 2025
e67ecc2
update the imran instance to reflect theattributes update
HassanOHOsman Dec 3, 2025
37a29f0
added a return type for the is_adult function
HassanOHOsman Dec 3, 2025
0e15f42
create .py file for exercise 8
HassanOHOsman Dec 4, 2025
8e1c160
imprt dataclass module from its library
HassanOHOsman Dec 4, 2025
dbe6de6
reconstructing the person class as per @dataclass
HassanOHOsman Dec 4, 2025
315c87a
add question 8 as a comment
HassanOHOsman Dec 4, 2025
a790f41
indenting the is_adult fuc so that it's considered part of the Person…
HassanOHOsman Dec 4, 2025
5082b38
housekeeping and removing extra spaces
HassanOHOsman Dec 4, 2025
e25ff74
create .py file with question 9
HassanOHOsman Dec 4, 2025
8bc0681
rearranging
HassanOHOsman Dec 4, 2025
d4ab965
added "age" field and updated class instances accodingly
HassanOHOsman Dec 4, 2025
7a430c1
create .py file for question 10
HassanOHOsman Dec 4, 2025
68993f5
add question 10
HassanOHOsman Dec 4, 2025
d276be9
change type anno. of "person.preferred_operating_system" to List[str]
HassanOHOsman Dec 4, 2025
70bc59a
renamed preferred_operating_system to preferred_operating_systems sin…
HassanOHOsman Dec 4, 2025
1eae1bb
adding a closing bracket to the list
HassanOHOsman Dec 4, 2025
45a6b7c
updated find_possible_laptops func to reflect the change to the type …
HassanOHOsman Dec 4, 2025
665b5d3
add question 11 as a comment
HassanOHOsman Dec 4, 2025
27fb6c5
update question 11
HassanOHOsman Dec 4, 2025
9cfc190
created a list of laptops avaiable to borrow from a library
HassanOHOsman Dec 4, 2025
017bce3
create classes: Laptop & Person via dataclass
HassanOHOsman Dec 4, 2025
0cac4f2
update values for laptop instances
HassanOHOsman Dec 4, 2025
6b1fc1e
create a person builder function
HassanOHOsman Dec 4, 2025
da93203
updating the person_builder func
HassanOHOsman Dec 4, 2025
12c6e38
convert ageinprson_builder func back to int
HassanOHOsman Dec 4, 2025
3022a19
testing person_builder func output by printing to console
HassanOHOsman Dec 4, 2025
e981618
allowing OS to be in lowercase too
HassanOHOsman Dec 4, 2025
2702dd9
updating code to validate types
HassanOHOsman Dec 4, 2025
b0de1ee
updated person_builder func validation for fields
HassanOHOsman Dec 4, 2025
f073259
remove type checking/valdiation lines as they are not working
HassanOHOsman Dec 5, 2025
1a0f28f
adding an OS with a limited list of avaible options
HassanOHOsman Dec 5, 2025
4a3d056
update rest of code as per enums importation
HassanOHOsman Dec 5, 2025
b1e5f1d
moving OS class at the top so OS field erro oin laptop class is avoided
HassanOHOsman Dec 5, 2025
eb1be83
add type validation measures
HassanOHOsman Dec 5, 2025
6c155a8
CREATE AND UPDATE LAPTOP COUNTER FUNCTION
HassanOHOsman Dec 5, 2025
b469b8d
add a helper function parse_os_input to handle a variety of ways end …
HassanOHOsman Dec 5, 2025
5c05376
update counter function to handle different cases as per number of la…
HassanOHOsman Dec 5, 2025
6cf094f
improve readability of output for counter OS
HassanOHOsman Dec 5, 2025
60782dd
input user message when there are more than a laptop of their chosen OS
HassanOHOsman Dec 5, 2025
275feb8
corrected laptop_counter func
HassanOHOsman Dec 5, 2025
5c49864
create OS counter to find out if more OS other than end user's preffe…
HassanOHOsman Dec 5, 2025
8cd2513
improve more_avaiable_function
HassanOHOsman Dec 5, 2025
25307d4
create .py file for exercise 12
HassanOHOsman Dec 8, 2025
43db6cf
add Q12 to the .py file
HassanOHOsman Dec 8, 2025
ff5238e
add prediction
HassanOHOsman Dec 8, 2025
40d209b
comment problematic lines
HassanOHOsman Dec 8, 2025
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241 changes: 241 additions & 0 deletions prep-exercises/.venv/bin/Activate.ps1
Original file line number Diff line number Diff line change
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<#
.Synopsis
Activate a Python virtual environment for the current PowerShell session.

.Description
Pushes the python executable for a virtual environment to the front of the
$Env:PATH environment variable and sets the prompt to signify that you are
in a Python virtual environment. Makes use of the command line switches as
well as the `pyvenv.cfg` file values present in the virtual environment.

.Parameter VenvDir
Path to the directory that contains the virtual environment to activate. The
default value for this is the parent of the directory that the Activate.ps1
script is located within.

.Parameter Prompt
The prompt prefix to display when this virtual environment is activated. By
default, this prompt is the name of the virtual environment folder (VenvDir)
surrounded by parentheses and followed by a single space (ie. '(.venv) ').

.Example
Activate.ps1
Activates the Python virtual environment that contains the Activate.ps1 script.

.Example
Activate.ps1 -Verbose
Activates the Python virtual environment that contains the Activate.ps1 script,
and shows extra information about the activation as it executes.

.Example
Activate.ps1 -VenvDir C:\Users\MyUser\Common\.venv
Activates the Python virtual environment located in the specified location.

.Example
Activate.ps1 -Prompt "MyPython"
Activates the Python virtual environment that contains the Activate.ps1 script,
and prefixes the current prompt with the specified string (surrounded in
parentheses) while the virtual environment is active.

.Notes
On Windows, it may be required to enable this Activate.ps1 script by setting the
execution policy for the user. You can do this by issuing the following PowerShell
command:

PS C:\> Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

For more information on Execution Policies:
https://go.microsoft.com/fwlink/?LinkID=135170

#>
Param(
[Parameter(Mandatory = $false)]
[String]
$VenvDir,
[Parameter(Mandatory = $false)]
[String]
$Prompt
)

<# Function declarations --------------------------------------------------- #>

<#
.Synopsis
Remove all shell session elements added by the Activate script, including the
addition of the virtual environment's Python executable from the beginning of
the PATH variable.

.Parameter NonDestructive
If present, do not remove this function from the global namespace for the
session.

#>
function global:deactivate ([switch]$NonDestructive) {
# Revert to original values

# The prior prompt:
if (Test-Path -Path Function:_OLD_VIRTUAL_PROMPT) {
Copy-Item -Path Function:_OLD_VIRTUAL_PROMPT -Destination Function:prompt
Remove-Item -Path Function:_OLD_VIRTUAL_PROMPT
}

# The prior PYTHONHOME:
if (Test-Path -Path Env:_OLD_VIRTUAL_PYTHONHOME) {
Copy-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME -Destination Env:PYTHONHOME
Remove-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME
}

# The prior PATH:
if (Test-Path -Path Env:_OLD_VIRTUAL_PATH) {
Copy-Item -Path Env:_OLD_VIRTUAL_PATH -Destination Env:PATH
Remove-Item -Path Env:_OLD_VIRTUAL_PATH
}

# Just remove the VIRTUAL_ENV altogether:
if (Test-Path -Path Env:VIRTUAL_ENV) {
Remove-Item -Path env:VIRTUAL_ENV
}

# Just remove the _PYTHON_VENV_PROMPT_PREFIX altogether:
if (Get-Variable -Name "_PYTHON_VENV_PROMPT_PREFIX" -ErrorAction SilentlyContinue) {
Remove-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Scope Global -Force
}

# Leave deactivate function in the global namespace if requested:
if (-not $NonDestructive) {
Remove-Item -Path function:deactivate
}
}

<#
.Description
Get-PyVenvConfig parses the values from the pyvenv.cfg file located in the
given folder, and returns them in a map.

For each line in the pyvenv.cfg file, if that line can be parsed into exactly
two strings separated by `=` (with any amount of whitespace surrounding the =)
then it is considered a `key = value` line. The left hand string is the key,
the right hand is the value.

If the value starts with a `'` or a `"` then the first and last character is
stripped from the value before being captured.

.Parameter ConfigDir
Path to the directory that contains the `pyvenv.cfg` file.
#>
function Get-PyVenvConfig(
[String]
$ConfigDir
) {
Write-Verbose "Given ConfigDir=$ConfigDir, obtain values in pyvenv.cfg"

# Ensure the file exists, and issue a warning if it doesn't (but still allow the function to continue).
$pyvenvConfigPath = Join-Path -Resolve -Path $ConfigDir -ChildPath 'pyvenv.cfg' -ErrorAction Continue

# An empty map will be returned if no config file is found.
$pyvenvConfig = @{ }

if ($pyvenvConfigPath) {

Write-Verbose "File exists, parse `key = value` lines"
$pyvenvConfigContent = Get-Content -Path $pyvenvConfigPath

$pyvenvConfigContent | ForEach-Object {
$keyval = $PSItem -split "\s*=\s*", 2
if ($keyval[0] -and $keyval[1]) {
$val = $keyval[1]

# Remove extraneous quotations around a string value.
if ("'""".Contains($val.Substring(0, 1))) {
$val = $val.Substring(1, $val.Length - 2)
}

$pyvenvConfig[$keyval[0]] = $val
Write-Verbose "Adding Key: '$($keyval[0])'='$val'"
}
}
}
return $pyvenvConfig
}


<# Begin Activate script --------------------------------------------------- #>

# Determine the containing directory of this script
$VenvExecPath = Split-Path -Parent $MyInvocation.MyCommand.Definition
$VenvExecDir = Get-Item -Path $VenvExecPath

Write-Verbose "Activation script is located in path: '$VenvExecPath'"
Write-Verbose "VenvExecDir Fullname: '$($VenvExecDir.FullName)"
Write-Verbose "VenvExecDir Name: '$($VenvExecDir.Name)"

# Set values required in priority: CmdLine, ConfigFile, Default
# First, get the location of the virtual environment, it might not be
# VenvExecDir if specified on the command line.
if ($VenvDir) {
Write-Verbose "VenvDir given as parameter, using '$VenvDir' to determine values"
}
else {
Write-Verbose "VenvDir not given as a parameter, using parent directory name as VenvDir."
$VenvDir = $VenvExecDir.Parent.FullName.TrimEnd("\\/")
Write-Verbose "VenvDir=$VenvDir"
}

# Next, read the `pyvenv.cfg` file to determine any required value such
# as `prompt`.
$pyvenvCfg = Get-PyVenvConfig -ConfigDir $VenvDir

# Next, set the prompt from the command line, or the config file, or
# just use the name of the virtual environment folder.
if ($Prompt) {
Write-Verbose "Prompt specified as argument, using '$Prompt'"
}
else {
Write-Verbose "Prompt not specified as argument to script, checking pyvenv.cfg value"
if ($pyvenvCfg -and $pyvenvCfg['prompt']) {
Write-Verbose " Setting based on value in pyvenv.cfg='$($pyvenvCfg['prompt'])'"
$Prompt = $pyvenvCfg['prompt'];
}
else {
Write-Verbose " Setting prompt based on parent's directory's name. (Is the directory name passed to venv module when creating the virutal environment)"
Write-Verbose " Got leaf-name of $VenvDir='$(Split-Path -Path $venvDir -Leaf)'"
$Prompt = Split-Path -Path $venvDir -Leaf
}
}

Write-Verbose "Prompt = '$Prompt'"
Write-Verbose "VenvDir='$VenvDir'"

# Deactivate any currently active virtual environment, but leave the
# deactivate function in place.
deactivate -nondestructive

# Now set the environment variable VIRTUAL_ENV, used by many tools to determine
# that there is an activated venv.
$env:VIRTUAL_ENV = $VenvDir

if (-not $Env:VIRTUAL_ENV_DISABLE_PROMPT) {

Write-Verbose "Setting prompt to '$Prompt'"

# Set the prompt to include the env name
# Make sure _OLD_VIRTUAL_PROMPT is global
function global:_OLD_VIRTUAL_PROMPT { "" }
Copy-Item -Path function:prompt -Destination function:_OLD_VIRTUAL_PROMPT
New-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Description "Python virtual environment prompt prefix" -Scope Global -Option ReadOnly -Visibility Public -Value $Prompt

function global:prompt {
Write-Host -NoNewline -ForegroundColor Green "($_PYTHON_VENV_PROMPT_PREFIX) "
_OLD_VIRTUAL_PROMPT
}
}

# Clear PYTHONHOME
if (Test-Path -Path Env:PYTHONHOME) {
Copy-Item -Path Env:PYTHONHOME -Destination Env:_OLD_VIRTUAL_PYTHONHOME
Remove-Item -Path Env:PYTHONHOME
}

# Add the venv to the PATH
Copy-Item -Path Env:PATH -Destination Env:_OLD_VIRTUAL_PATH
$Env:PATH = "$VenvExecDir$([System.IO.Path]::PathSeparator)$Env:PATH"
66 changes: 66 additions & 0 deletions prep-exercises/.venv/bin/activate
Original file line number Diff line number Diff line change
@@ -0,0 +1,66 @@
# This file must be used with "source bin/activate" *from bash*
# you cannot run it directly

deactivate () {
# reset old environment variables
if [ -n "${_OLD_VIRTUAL_PATH:-}" ] ; then
PATH="${_OLD_VIRTUAL_PATH:-}"
export PATH
unset _OLD_VIRTUAL_PATH
fi
if [ -n "${_OLD_VIRTUAL_PYTHONHOME:-}" ] ; then
PYTHONHOME="${_OLD_VIRTUAL_PYTHONHOME:-}"
export PYTHONHOME
unset _OLD_VIRTUAL_PYTHONHOME
fi

# This should detect bash and zsh, which have a hash command that must
# be called to get it to forget past commands. Without forgetting
# past commands the $PATH changes we made may not be respected
if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
hash -r 2> /dev/null
fi

if [ -n "${_OLD_VIRTUAL_PS1:-}" ] ; then
PS1="${_OLD_VIRTUAL_PS1:-}"
export PS1
unset _OLD_VIRTUAL_PS1
fi

unset VIRTUAL_ENV
if [ ! "${1:-}" = "nondestructive" ] ; then
# Self destruct!
unset -f deactivate
fi
}

# unset irrelevant variables
deactivate nondestructive

VIRTUAL_ENV="/Users/h.o./CYF/Module-Tools/prep-exercises/.venv"
export VIRTUAL_ENV

_OLD_VIRTUAL_PATH="$PATH"
PATH="$VIRTUAL_ENV/bin:$PATH"
export PATH

# unset PYTHONHOME if set
# this will fail if PYTHONHOME is set to the empty string (which is bad anyway)
# could use `if (set -u; : $PYTHONHOME) ;` in bash
if [ -n "${PYTHONHOME:-}" ] ; then
_OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME:-}"
unset PYTHONHOME
fi

if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then
_OLD_VIRTUAL_PS1="${PS1:-}"
PS1="(.venv) ${PS1:-}"
export PS1
fi

# This should detect bash and zsh, which have a hash command that must
# be called to get it to forget past commands. Without forgetting
# past commands the $PATH changes we made may not be respected
if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
hash -r 2> /dev/null
fi
25 changes: 25 additions & 0 deletions prep-exercises/.venv/bin/activate.csh
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@
# This file must be used with "source bin/activate.csh" *from csh*.
# You cannot run it directly.
# Created by Davide Di Blasi <[email protected]>.
# Ported to Python 3.3 venv by Andrew Svetlov <[email protected]>

alias deactivate 'test $?_OLD_VIRTUAL_PATH != 0 && setenv PATH "$_OLD_VIRTUAL_PATH" && unset _OLD_VIRTUAL_PATH; rehash; test $?_OLD_VIRTUAL_PROMPT != 0 && set prompt="$_OLD_VIRTUAL_PROMPT" && unset _OLD_VIRTUAL_PROMPT; unsetenv VIRTUAL_ENV; test "\!:*" != "nondestructive" && unalias deactivate'

# Unset irrelevant variables.
deactivate nondestructive

setenv VIRTUAL_ENV "/Users/h.o./CYF/Module-Tools/prep-exercises/.venv"

set _OLD_VIRTUAL_PATH="$PATH"
setenv PATH "$VIRTUAL_ENV/bin:$PATH"


set _OLD_VIRTUAL_PROMPT="$prompt"

if (! "$?VIRTUAL_ENV_DISABLE_PROMPT") then
set prompt = "(.venv) $prompt"
endif

alias pydoc python -m pydoc

rehash
64 changes: 64 additions & 0 deletions prep-exercises/.venv/bin/activate.fish
Original file line number Diff line number Diff line change
@@ -0,0 +1,64 @@
# This file must be used with "source <venv>/bin/activate.fish" *from fish*
# (https://fishshell.com/); you cannot run it directly.

function deactivate -d "Exit virtual environment and return to normal shell environment"
# reset old environment variables
if test -n "$_OLD_VIRTUAL_PATH"
set -gx PATH $_OLD_VIRTUAL_PATH
set -e _OLD_VIRTUAL_PATH
end
if test -n "$_OLD_VIRTUAL_PYTHONHOME"
set -gx PYTHONHOME $_OLD_VIRTUAL_PYTHONHOME
set -e _OLD_VIRTUAL_PYTHONHOME
end

if test -n "$_OLD_FISH_PROMPT_OVERRIDE"
functions -e fish_prompt
set -e _OLD_FISH_PROMPT_OVERRIDE
functions -c _old_fish_prompt fish_prompt
functions -e _old_fish_prompt
end

set -e VIRTUAL_ENV
if test "$argv[1]" != "nondestructive"
# Self-destruct!
functions -e deactivate
end
end

# Unset irrelevant variables.
deactivate nondestructive

set -gx VIRTUAL_ENV "/Users/h.o./CYF/Module-Tools/prep-exercises/.venv"

set -gx _OLD_VIRTUAL_PATH $PATH
set -gx PATH "$VIRTUAL_ENV/bin" $PATH

# Unset PYTHONHOME if set.
if set -q PYTHONHOME
set -gx _OLD_VIRTUAL_PYTHONHOME $PYTHONHOME
set -e PYTHONHOME
end

if test -z "$VIRTUAL_ENV_DISABLE_PROMPT"
# fish uses a function instead of an env var to generate the prompt.

# Save the current fish_prompt function as the function _old_fish_prompt.
functions -c fish_prompt _old_fish_prompt

# With the original prompt function renamed, we can override with our own.
function fish_prompt
# Save the return status of the last command.
set -l old_status $status

# Output the venv prompt; color taken from the blue of the Python logo.
printf "%s%s%s" (set_color 4B8BBE) "(.venv) " (set_color normal)

# Restore the return status of the previous command.
echo "exit $old_status" | .
# Output the original/"old" prompt.
_old_fish_prompt
end

set -gx _OLD_FISH_PROMPT_OVERRIDE "$VIRTUAL_ENV"
end
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