Python Distribute Module using Inno Setup

Question

Is it possible to distribute a Python library I made using Inno Setup instead of Python distutils? I am talking about the distutils Windows installers. If so, how? The modules are at https://code.google.com/p/mathworks/.

EDIT: I have made some progress with lots of Googling. Here is my setup script, but it can't locate Python. maybe somebody can help.

; Script generated by the Inno Setup Script Wizard.
; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!

[Setup]
; NOTE: The value of AppId uniquely identifies this application.
; Do not use the same AppId value in installers for other applications.
; (To generate a new GUID, click Tools | Generate GUID inside the IDE.)
AppId={{3B6685C2-D478-4410-B973-57FA36A6DA6D}
AppName=Mathworks
AppVersion=1.3
;AppVerName=Mathworks 1.3
AppPublisherURL=https://code.google.com/p/mathworks/
AppSupportURL=https://code.google.com/p/mathworks/
AppUpdatesURL=https://code.google.com/p/mathworks/
DefaultDirName={code:GetDirName}
DisableDirPage=yes
DefaultGroupName=My Program
DisableProgramGroupPage=yes
LicenseFile=C:\Users\Ryan\Documents\mathworks-git\LICENSE_1_0.txt
OutputDir=C:\Users\Ryan\Desktop
OutputBaseFilename=mathworks-mwver
Compression=lzma
SolidCompression=yes

[Languages]
Name: "english"; MessagesFile: "compiler:Default.isl"

[Files]
Source: "C:\Users\Ryan\Documents\mathworks-git\__init__.py"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Ryan\Documents\mathworks-git\exponent.py"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Ryan\Documents\mathworks-git\LICENSE_1_0.txt"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Ryan\Documents\mathworks-git\multiples.py"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Ryan\Documents\mathworks-git\ptheorem.py"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Ryan\Documents\mathworks-git\shapes.py"; DestDir: "{app}"; Flags: ignoreversion
; NOTE: Don't use "Flags: ignoreversion" on any shared system files

[Code]
var CancelWithoutPrompt: boolean;

function InitializeSetup() : Boolean;
begin
  CancelWithoutPrompt := false;
  result := true;
end;

function GetDirName(Value: string): string;
var          
  InstallPath: string;
begin
  if RegQueryStringValue(HKLM, 'SOFTWARE\Python\PythonCore\2.7\InstallPath', '(Default)', InstallPath) then
    BEGIN
    Result := InstallPath
  END else
  if RegQueryStringValue(HKCU, 'SOFTWARE\Python\PythonCore\2.7\InstallPath', '(Default)', InstallPath) then
    BEGIN
    Result := InstallPath;
  END else
  if RegQueryStringValue(HKLM, 'SOFTWARE\Wow6432Node\Python\PythonCore\2.7', '(Default)', InstallPath) then
    BEGIN
    Result := InstallPath;
  END else
    MsgBox('Could not find Python',mbError,MB_OK);
    CancelWithoutPrompt := true;
    WizardForm.Close;
end;

procedure CancelButtonClick(CurPageID: Integer; var Cancel, Confirm: Boolean);
begin
  if CurPageID=wpInstalling then
    Confirm := not CancelWithoutPrompt;
end;

I got the code from Inno Setup - Setting DefaultDir using wildcard registry entry? and Inno Setup: How to Abort/Terminate Setup During Install?.

Answer 1

I figured it out! My code:

#define AppName "Mathworks"
#define AppDir "mathworks"
#define PyVer "2.7"
#define AppVer "1.3:

[Setup]
AppId={{3B6685C2-D478-4410-B973-57FA36A6DA6D}
AppName={#AppName}
AppVersion={#AppVer}
AppVerName=Mathworks {#AppVer}
AppPublisherURL=https://code.google.com/p/mathworks/
AppSupportURL=https://code.google.com/p/mathworks/
AppUpdatesURL=https://code.google.com/p/mathworks/
DefaultDirName={code:GetDirName}
DefaultGroupName={#AppName}
DisableProgramGroupPage=yes
LicenseFile=C:\Users\Ryan\Documents\mathworks-git\LICENSE_1_0.txt
OutputDir=C:\Users\Ryan\Desktop\Inno Setup
OutputBaseFilename=mathworks-{#AppVer}-python-{#PyVer}
Compression=lzma
SolidCompression=yes

[Languages]
Name: "english"; MessagesFile: "compiler:Default.isl"

[Files]
Source: "C:\Users\Ryan\Documents\mathworks-git\__init__.py"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Ryan\Documents\mathworks-git\exponent.py"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Ryan\Documents\mathworks-git\LICENSE_1_0.txt"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Ryan\Documents\mathworks-git\multiples.py"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Ryan\Documents\mathworks-git\ptheorem.py"; DestDir: "{app}"; Flags: ignoreversion
Source: "C:\Users\Ryan\Documents\mathworks-git\shapes.py"; DestDir: "{app}"; Flags: ignoreversion

[Code]
procedure ExitProcess(exitCode:integer);
  external 'ExitProcess@kernel32.dll stdcall';

function GetDirName(Value: string): string;
var          
  InstallPath: string;
  reg1 : string;
  reg2 : string;
begin
  reg1 := 'SOFTWARE\Python\PythonCore\' + '{#PyVer}' + '\InstallPath';
  reg2 := 'SOFTWARE\Python\PythonCore\Wow6432Node\' + '{#PyVer}' + '\InstallPath';
  if RegQueryStringValue(HKLM, reg1, '', InstallPath) then
    BEGIN
    Result := InstallPath + 'Lib\site-packages\' + '{#AppDir}';
  END else
  if RegQueryStringValue(HKCU, reg1, '', InstallPath) then
    BEGIN
    Result := InstallPath + 'Lib\site-packages\' + '{#AppDir}';
  END else
  if RegQueryStringValue(HKLM, reg2, '', InstallPath) then
    BEGIN
    Result := InstallPath + 'Lib\site-packages\' + '{#AppDir}';
  END else
    BEGIN
    MsgBox('Could not find Python',mbError,MB_OK);
    ExitProcess(1);
   END
end;