Update examples to use render.download

Author: wch

examples/annotation-export/app.py

@@ -109,7 +109,7 @@ def annotations():
         df = df.loc[df["annotation"] != ""]
         return df
 
-    @session.download(filename="data.csv")
+    @render.download(filename="data.csv")
     def download():
         yield annotated_data().to_csv()
 

shiny/api-examples/download/app.py

@@ -7,7 +7,7 @@
 import matplotlib.pyplot as plt
 import numpy as np
 
-from shiny import App, Inputs, Outputs, Session, ui
+from shiny import App, Inputs, Outputs, Session, render, ui
 
 
 def make_example(id: str, label: str, title: str, desc: str, extra: Any = None):
@@ -77,7 +77,7 @@ def make_example(id: str, label: str, title: str, desc: str, extra: Any = None):
 
 
 def server(input: Inputs, output: Outputs, session: Session):
-    @session.download()
+    @render.download()
     def download1():
         """
         This is the simplest case. The implementation simply returns the name of a file.
@@ -88,12 +88,12 @@ def download1():
         path = os.path.join(os.path.dirname(__file__), "mtcars.csv")
         return path
 
-    @session.download(filename="image.png")
+    @render.download(filename="image.png")
     def download2():
         """
         Another way to implement a file download is by yielding bytes; either all at
         once, like in this case, or by yielding multiple times. When using this
-        approach, you should pass a filename argument to @session.download, which
+        approach, you should pass a filename argument to @render.download, which
         determines what the browser will name the downloaded file.
         """
 
@@ -107,7 +107,7 @@ def download2():
             plt.savefig(buf, format="png")
             yield buf.getvalue()
 
-    @session.download(
+    @render.download(
         filename=lambda: f"新型-{date.today().isoformat()}-{np.random.randint(100,999)}.csv"
     )
     async def download3():
@@ -116,7 +116,8 @@ async def download3():
         yield "新,1,2\n"
         yield "型,4,5\n"
 
-    @session.download(id="download4", filename="failuretest.txt")
+    @output(id="download4")
+    @render.download(filename="failuretest.txt")
     async def _():
         yield "hello"
         raise Exception("This error was caused intentionally")

shiny/api-examples/download_button/app.py

@@ -1,18 +1,17 @@
 import asyncio
+import random
 from datetime import date
 
-import numpy as np
-
-from shiny import App, Inputs, Outputs, Session, ui
+from shiny import App, Inputs, Outputs, Session, render, ui
 
 app_ui = ui.page_fluid(
     ui.download_button("downloadData", "Download"),
 )
 
 
 def server(input: Inputs, output: Outputs, session: Session):
-    @session.download(
-        filename=lambda: f"新型-{date.today().isoformat()}-{np.random.randint(100,999)}.csv"
+    @render.download(
+        filename=lambda: f"新型-{date.today().isoformat()}-{random.randint(100,999)}.csv"
     )
     async def downloadData():
         await asyncio.sleep(0.25)

shiny/api-examples/download_link/app.py

@@ -1,18 +1,17 @@
 import asyncio
+import random
 from datetime import date
 
-import numpy as np
-
-from shiny import App, Inputs, Outputs, Session, ui
+from shiny import App, Inputs, Outputs, Session, render, ui
 
 app_ui = ui.page_fluid(
     ui.download_link("downloadData", "Download"),
 )
 
 
 def server(input: Inputs, output: Outputs, session: Session):
-    @session.download(
-        filename=lambda: f"新型-{date.today().isoformat()}-{np.random.randint(100,999)}.csv"
+    @render.download(
+        filename=lambda: f"新型-{date.today().isoformat()}-{random.randint(100,999)}.csv"
     )
     async def downloadData():
         await asyncio.sleep(0.25)

tests/playwright/shiny/bugs/0696-resolve-id/app.py

@@ -258,7 +258,7 @@ def out_ui():
 
     download_button_count = 0
 
-    @session.download(filename=lambda: f"download_button-{session.ns}.csv")
+    @render.download(filename=lambda: f"download_button-{session.ns}.csv")
     async def download_button():
         nonlocal download_button_count
         download_button_count += 1
@@ -267,7 +267,7 @@ async def download_button():
 
     download_link_count = 0
 
-    @session.download(filename=lambda: f"download_link-{session.ns}.csv")
+    @render.download(filename=lambda: f"download_link-{session.ns}.csv")
     async def download_link():
         nonlocal download_link_count
         download_link_count += 1