Simplified installation process of PlatformIO // Resolve #274

scripts/appveyor/install.ps1

@@ -59,17 +59,12 @@ function InstallPython ($python_version, $architecture, $python_home) {
 
 
 function InstallPip ($python_home) {
-    $pip_path = $python_home + "/Scripts/pip.exe"
     $python_path = $python_home + "/python.exe"
-    if (-not(Test-Path $pip_path)) {
-        Write-Host "Installing pip..."
-        $webclient = New-Object System.Net.WebClient
-        $webclient.DownloadFile($GET_PIP_URL, $GET_PIP_PATH)
-        Write-Host "Executing:" $python_path $GET_PIP_PATH
-        Start-Process -FilePath "$python_path" -ArgumentList "$GET_PIP_PATH" -Wait -Passthru
-    } else {
-        Write-Host "pip already installed."
-    }
+    Write-Host "Installing pip..."
+    $webclient = New-Object System.Net.WebClient
+    $webclient.DownloadFile($GET_PIP_URL, $GET_PIP_PATH)
+    Write-Host "Executing:" $python_path $GET_PIP_PATH
+    Start-Process -FilePath "$python_path" -ArgumentList "$GET_PIP_PATH" -Wait -Passthru
 }
 
 function InstallPackage ($python_home, $pkg) {

scripts/get-platformio.py

@@ -87,21 +87,17 @@ def install_pip():
 
 
 def install_pypi_packages(packages):
-    for pipargs in packages:
-        print (exec_python_cmd([
-            "-m", "pip.__main__" if sys.version_info < (2, 7, 0) else "pip",
-            "install", "-U"] + pipargs))
+    print (exec_python_cmd([
+        "-m", "pip.__main__" if sys.version_info < (2, 7, 0) else "pip",
+        "install", "-U"] + packages))
 
 
 def main():
     steps = [
         ("Fixing Windows %PATH% Environment", fix_winpython_pathenv, []),
         ("Installing Python Package Manager", install_pip, []),
-        ("Installing PlatformIO and dependencies", install_pypi_packages, [
-            [["setuptools"], ["platformio"], [
-                "--egg", "http://dl.platformio.org/scons.zip"
-            ]]
-        ])
+        ("Installing PlatformIO and dependencies", install_pypi_packages,
+         [["setuptools", "platformio"]])
     ]
 
     if not IS_WINDOWS: