JM - Algorithms

recipe_batches/recipe_batches.py

@@ -2,13 +2,54 @@
 
 import math
 
+rec = {'milk': 100, 'butter': 50, 'flour': 5}
+ing = {'milk': 940, 'butter': 910, 'flour': 101}
+
+
 def recipe_batches(recipe, ingredients):
-  pass 
+    # Grab the names of the ingredients
+    recipe_ingredients = recipe.keys()
+
+    # Set batches to 0
+    batches = 0
+
+    # Loop until function finds that their aren't enough ingredients
+    while 1 == 1:
+        print(f'current batches: {batches}')
+
+        # Loop thru ingredients
+        for recipe_key in recipe_ingredients:
+
+            # Print msg if an ingredient does not exist in ingredients dictionary
+            try:
+                # Test if there is requiered amount of current ingredient
+                if ingredients[recipe_key] >= recipe[recipe_key]:
+                    print(f'avail_{recipe_key}:{ingredients[recipe_key]}, need_{recipe_key}:{recipe[recipe_key]}')
+
+                    # Subtract required ingredient quantity from ingredients dictionary value
+                    ingredients[recipe_key] -= recipe[recipe_key]
+                    print(f'new avail_{recipe_key}:{ingredients[recipe_key]}')
+
+                # Return current amount of batches if there is not enough for another batch
+                else:
+                    print(f'Not enough {recipe_key}')
+                    print(f'batches: {batches}')
+                    return batches
+            # Print message if an ingredient does not exist in ingredients dictionary
+            except KeyError:
+                print(f'No {recipe_key} in available ingredients')
+                print(f'batches: {batches}')
+                return 0
+
+        batches += 1
+
 
+recipe_batches(rec, ing)
 
-if __name__ == '__main__':
-  # Change the entries of these dictionaries to test 
-  # your implementation with different inputs
-  recipe = { 'milk': 100, 'butter': 50, 'flour': 5 }
-  ingredients = { 'milk': 132, 'butter': 48, 'flour': 51 }
-  print("{batches} batches can be made from the available ingredients: {ingredients}.".format(batches=recipe_batches(recipe, ingredients), ingredients=ingredients))
+# if __name__ == '__main__':
+#     # Change the entries of these dictionaries to test
+#     # your implementation with different inputs
+#     recipe = {'milk': 100, 'butter': 50, 'flour': 5}
+#     ingredients = {'milk': 132, 'butter': 48, 'flour': 51}
+#     print("{batches} batches can be made from the available ingredients: {ingredients}.".format(
+#         batches=recipe_batches(recipe, ingredients), ingredients=ingredients))

recipe_batches/test_recipe_batches.py

@@ -1,14 +1,18 @@
 import unittest
 from recipe_batches import recipe_batches
 
+
 class Test(unittest.TestCase):
 
-  def test_recipe_batches(self):
-    self.assertEqual(recipe_batches({ 'milk': 100, 'flour': 4, 'sugar': 10, 'butter': 5 }, { 'milk': 1288, 'flour': 9, 'sugar': 95 }), 0)
-    self.assertEqual(recipe_batches({ 'milk': 100, 'butter': 50, 'cheese': 10 }, { 'milk': 198, 'butter': 52, 'cheese': 10 }), 1)
-    self.assertEqual(recipe_batches({ 'milk': 2, 'sugar': 40, 'butter': 20 }, { 'milk': 5, 'sugar': 120, 'butter': 500 }), 2)
-    self.assertEqual(recipe_batches({ 'milk': 2 }, { 'milk': 200}), 100)
+    def test_recipe_batches(self):
+        self.assertEqual(recipe_batches({'milk': 100, 'flour': 4, 'sugar': 10, 'butter': 5},
+                                        {'milk': 1288, 'flour': 9, 'sugar': 95}), 0)
+        self.assertEqual(
+            recipe_batches({'milk': 100, 'butter': 50, 'cheese': 10}, {'milk': 198, 'butter': 52, 'cheese': 10}), 1)
+        self.assertEqual(
+            recipe_batches({'milk': 2, 'sugar': 40, 'butter': 20}, {'milk': 5, 'sugar': 120, 'butter': 500}), 2)
+        self.assertEqual(recipe_batches({'milk': 2}, {'milk': 200}), 100)
 
 
 if __name__ == '__main__':
-  unittest.main()
+    unittest.main()

stock_prices/stock_prices.py

@@ -1,3 +1,4 @@
+# Initial Commit
 #!/usr/bin/python
 
 import argparse

venv/bin/Activate.ps1

@@ -0,0 +1,231 @@
+<#
+.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.
+
+
+#>
+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("\\/")
+    $VenvDir = $VenvDir.Insert($VenvDir.Length, "/")
+    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"