migrate demo to pywebio v1.4

Author: wang0618

demos/__init__.py

@@ -1,8 +0,0 @@
-r"""
-.. automodule:: demos.bmi
-.. automodule:: demos.input_usage
-.. automodule:: demos.output_usage
-.. automodule:: demos.chat_room
-.. automodule:: demos.markdown_previewer
-.. automodule:: demos.gomoku_game
-"""

demos/bmi.py

@@ -1,11 +1,3 @@
-"""
-BMI calculation
-^^^^^^^^^^^^^^^
-
-Simple application for calculating `Body Mass Index <https://en.wikipedia.org/wiki/Body_mass_index>`_
-
-:demo_host:`Demo </bmi>`, `Source code <https://github.com/wang0618/PyWebIO/blob/dev/demos/bmi.py>`_
-"""
 from pywebio import start_server
 from pywebio.input import *
 from pywebio.output import *

demos/chat_room.py

@@ -1,13 +1,3 @@
-"""
-Online chat room
-^^^^^^^^^^^^^^^^^^^
-Chat with everyone currently online
-
-:demo_host:`Demo </chat_room>`, `Source code <https://github.com/wang0618/PyWebIO/blob/dev/demos/chat_room.py>`_
-
-* Use coroutine-based sessions
-* Use `run_async() <pywebio.session.run_async>` to start background coroutine
-"""
 import asyncio
 
 from pywebio import start_server

demos/doc_demo.py

@@ -3,20 +3,24 @@
 """
 from functools import partial
 from os import path, listdir
-import time
 
 from pywebio import start_server
-from pywebio.output import *
+from pywebio.platform import config
+from pywebio.session import local as session_local, info as session_info
+
+##########################################
+# Pre-import modules for demo
+import time
 from pywebio.input import *
-from pywebio.pin import *
-from pywebio.platform import seo
+from pywebio.output import *
 from pywebio.session import *
-from pywebio.session import local as session_local
+from pywebio.pin import *
+##########################################
 
 
 def t(eng, chinese):
     """return English or Chinese text according to the user's browser language"""
-    return chinese if 'zh' in get_info().user_language else eng
+    return chinese if 'zh' in session_info.user_language else eng
 
 
 here_dir = path.dirname(path.abspath(__file__))
@@ -45,18 +49,21 @@ def run_code(code, scope):
             toast('Exception occurred: "%s:%s"' % (type(e).__name__, e), color='error')
 
 
-IMPORT_CODE = """from pywebio.input import *
+IMPORT_CODE = """from pywebio import start_server
+from pywebio.input import *
 from pywebio.output import *
 from pywebio.session import *
 from pywebio.pin import *
 
+def main():
+    %s
+
+start_server(main, port=8080, debug=True)
 """
 
 
 def copytoclipboard(code):
-    code = IMPORT_CODE + code
-    if 'put_buttons(' in code or 'put_file(' in code:
-        code += '\n\nhold()  # keep session alive'
+    code = IMPORT_CODE % code.replace('\n', '\n    ')
     run_js("writeText(text)", text=code)
     toast('The code has been copied to the clipboard')
 
@@ -93,8 +100,6 @@ def handle_code(code, title):
 
         put_markdown('----')
 
-    hold()
-
 
 def get_app():
     """PyWebIO demos from document
@@ -111,7 +116,7 @@ def get_app():
         code = open(path.join(here_dir, 'doc_demos', name)).read()
         title, code = code.split('\n\n', 1)
         app[name] = partial(handle_code, code=code, title=title)
-        app[name] = seo('', title, app[name])
+        app[name] = config(title=name, description=title)(app[name])
 
     return app
 

demos/gomoku_game.py

@@ -1,10 +1,3 @@
-"""
-Online Shared Gomoku Game
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-All online players are assigned to two groups (black and white) and play same Gomoku game together.
-
-:demo_host:`Demo </gomoku_game>`, `Source code <https://github.com/wang0618/PyWebIO/blob/dev/demos/gomoku_game.py>`_
-"""
 import pywebio, time
 from pywebio.output import *
 from pywebio.session import *

demos/input_usage.py

@@ -1,10 +1,3 @@
-"""
-Input demo
-^^^^^^^^^^^^^^^
-Demonstrate various input usage supported by PyWebIO
-
-:demo_host:`Demo </input_usage>`, `Source code <https://github.com/wang0618/PyWebIO/blob/dev/demos/input_usage.py>`_
-"""
 import json
 
 from pywebio import start_server

demos/markdown_previewer.py

@@ -1,10 +1,3 @@
-"""
-Markdown Live Preview
-^^^^^^^^^^^^^^^^^^^^^^^^^^
-The online markdown editor with live preview.
-
-:demo_host:`Demo </markdown_previewer>`, `Source code <https://github.com/wang0618/PyWebIO/blob/dev/demos/markdown_previewer.py>`_
-"""
 from pywebio import start_server
 
 from pywebio.output import *

demos/output_usage.py

@@ -1,13 +1,6 @@
-"""
-Output demo
-^^^^^^^^^^^^^^
-Demonstrate various output usage supported by PyWebIO
-
-:demo_host:`Demo </output_usage>`, `Source code <https://github.com/wang0618/PyWebIO/blob/dev/demos/output_usage.py>`_
-"""
 from pywebio import start_server
 from pywebio.output import *
-from pywebio.session import hold, info as session_info
+from pywebio.session import info as session_info
 from functools import partial
 
 
@@ -354,8 +347,6 @@ def btn_click(btn_val):
     PyWebIO的输出演示到这里就结束了，更多内容请访问PyWebIO[用户指南](https://pywebio.readthedocs.io/zh_CN/latest/guide.html)和[output模块文档](https://pywebio.readthedocs.io/zh_CN/latest/output.html)。
     """), lstrip=True)
 
-    await hold()
-
 
 if __name__ == '__main__':
     start_server(main, debug=True, port=8080, cdn=False)

demos/set_env_demo.py

@@ -1,7 +1,3 @@
-"""
-`pywebio.session.set_env()` demo
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-"""
 from pywebio import start_server
 from pywebio.input import *
 from pywebio.output import *