stackbuilders · Larox · Jul 17, 2019 · Jul 16, 2019 · Jul 16, 2019 · Jul 16, 2019
diff --git a/.gitignore b/.gitignore
@@ -1,6 +1,7 @@
 .stack-work/
 _cache/
 _site/
+.DS_Store
 
 # Emacs backups
 *~
diff --git a/app/Main.hs b/app/Main.hs
@@ -24,6 +24,7 @@ supportedLanguages :: [String]
 supportedLanguages = [  -- Name here the directories of the programming languages to be supported
     "haskell"
   , "functional-full-stack" -- Haskell backend + PureScript frontend
+  , "python"
   ]
 
 markdownPattern :: Pattern

diff --git a/templates/tutorial.html b/templates/tutorial.html
@@ -45,6 +45,7 @@ <h2>
       </div>
     </div>  
 
+    $if(lts)$
     <p>
       Tested with:
       <ul>
@@ -76,6 +77,8 @@ <h2>
         $endif$
       </ul>
     </p>
+    $endif$
+
     <div>
       <div class="social-links-inline">
         <p>

diff --git a/tutorials/python/python-video-generation/code/.tool-versions b/tutorials/python/python-video-generation/code/.tool-versions
@@ -0,0 +1 @@
+python 3.6.5
diff --git a/tutorials/python/python-video-generation/code/Pipfile b/tutorials/python/python-video-generation/code/Pipfile
@@ -0,0 +1,16 @@
+[[source]]
+name = "pypi"
+url = "https://pypi.org/simple"
+verify_ssl = true
+
+[dev-packages]
+flake8 = "*"
+pylint = "*"
+autopep8 = "*"
+
+[packages]
+moviepy = "==1.0.0"
+gizeh = "==0.1.11"
+
+[requires]
+python_version = "3.6"
diff --git a/tutorials/python/python-video-generation/code/Pipfile.lock b/tutorials/python/python-video-generation/code/Pipfile.lock
diff --git a/tutorials/python/python-video-generation/code/Readme.md b/tutorials/python/python-video-generation/code/Readme.md
@@ -0,0 +1,66 @@
+# Local environment set up
+---
+
+## Install Python 3
+
+### Linux and OSX
+Using version manager [asdf-vm](https://asdf-vm.com/#/core-manage-asdf-vm?id=install-asdf-vm):
+
+##### Install [Python Plugin](https://github.com/danhper/asdf-python):
+``` bash
+$ asdf plugin-add python https://github.com/danhper/asdf-python.git
+```
+
+##### Install Python:
+Python version is specified in `.tools-versions` file. 
+``` bash
+$ asdf install
+```
+
+**Note:** This can be installed using package managers as well, the instruction
+may vary according to your package manager:
+- In Ubuntu:
+```bash
+sudo apt-get install python3
+```
+- In OSx:
+```bash
+brew install python3
+```
+
+### Windows
+Using package manager [Chocolatey](https://chocolatey.org/)
+
+``` bash
+C:\> choco install python3
+```
+
+#### Install dependencies
+
+From root project directory run:
+``` bash
+$ pipenv install
+```
+
+#### Enable your virtual environment
+
+From root project folder, enable virtual env typing
+``` bash
+pipenv shell
+```
+
+#### To generate the video
+
+With pipenv virtualenv enabled and from the root project folder run
+``` bash
+python python_video.py
+```
+
+**Note:** It's possible to execute the script directly with `pipenv` using:
+``` bash
+pipenv run python python_video.py
+```
+
+#### Disable Virtual Environment
+To Disable it type `exit`
+
diff --git a/tutorials/python/python-video-generation/code/assets/StackBuildersLogo.jpg b/tutorials/python/python-video-generation/code/assets/StackBuildersLogo.jpg
diff --git a/tutorials/python/python-video-generation/code/python_video.py b/tutorials/python/python-video-generation/code/python_video.py
@@ -0,0 +1,54 @@
+import moviepy.editor as mpy
+import gizeh as gz
+from math import pi
+
+
+VIDEO_SIZE = (640, 480)
+BLUE = (59/255, 89/255, 152/255)
+GREEN = (176/255, 210/255, 63/255)
+WHITE = (255, 255, 255)
+WHITE_GIZEH = (1, 1, 1)
+SB_LOGO_PATH = './assets/StackBuildersLogo.jpg'
+DURATION = 10
+
+
+def render_text(t):
+    surface = gz.Surface(640, 60, bg_color=WHITE_GIZEH)
+    text = gz.text(
+        "Let's build together", fontfamily="Charter",
+        fontsize=30, fontweight='bold', fill=BLUE, xy=(320, 40))
+    text.draw(surface)
+    return surface.get_npimage()
+
+
+def draw_stars(t):
+    surface = gz.Surface(640, 120, bg_color=WHITE_GIZEH)
+    for i in range(5):
+        star = gz.star(
+            nbranches=5, radius=120*0.2, ratio=0.5,
+            xy=[100*(i+1), 50], fill=GREEN, angle=t * pi)
+        star.draw(surface)
+    return surface.get_npimage()
+
+
+if __name__ == '__main__':
+    sb_logo = mpy.ImageClip(SB_LOGO_PATH). \
+        set_position(('center', 0)).resize(width=200)
+    text = mpy.VideoClip(render_text, duration=DURATION)
+    stars = mpy.VideoClip(draw_stars, duration=DURATION)
+
+    video = mpy.CompositeVideoClip(
+        [
+            sb_logo,
+            text.set_position(
+                ('center', sb_logo.size[1])),
+            stars.set_position(
+                ('center', sb_logo.size[1] + text.size[1])
+            )
+        ],
+        size=VIDEO_SIZE).\
+        on_color(
+            color=WHITE,
+            col_opacity=1).set_duration(DURATION)
+
+    video.write_videofile('video_with_python.mp4', fps=10)
diff --git a/tutorials/python/python-video-generation/code/video_with_python.mp4 b/tutorials/python/python-video-generation/code/video_with_python.mp4
diff --git a/tutorials/python/python-video-generation/images/video.gif b/tutorials/python/python-video-generation/images/video.gif
-Original file line number
+Diff line change
@@ Expand Up / @@ -45,6 +45,7 @@ <h2> @@
           </div>
         </div>
+        $if(lts)$
         <p>
           Tested with:
           <ul>
@@ Expand Down Expand Up / @@ -76,6 +77,8 @@ <h2> @@
             $endif$
           </ul>
         </p>
+        $endif$
         <div>
           <div class="social-links-inline">
             <p>
@@ Expand Down @@