Embedded apps for 1.36.0 (#1085)

* Add another fragment example

* Add horizontal bar chart example

* Add column vertical alignment examples

* Bump to nightly

python/api-examples-source/charts.bar_chart_horizontal.py

@@ -0,0 +1,10 @@
+import streamlit as st
+from vega_datasets import data
+
+@st.cache_data
+def get_data():
+    return data.barley()
+
+source = get_data()
+
+st.bar_chart(source, x="variety", y="yield", color="site", horizontal=True)

python/api-examples-source/execution.fragment_balloon.py

@@ -0,0 +1,14 @@
+import streamlit as st
+import time
+
+
+@st.experimental_fragment
+def release_the_balloons():
+    st.button("Release the balloons", help="Fragment rerun")
+    st.balloons()
+
+
+with st.spinner("Inflating balloons..."):
+    time.sleep(5)
+release_the_balloons()
+st.button("Inflate more balloons", help="Full rerun")

python/api-examples-source/layout.columns_bottom_widgets.py

@@ -0,0 +1,7 @@
+import streamlit as st
+
+left, middle, right = st.columns(3, vertical_alignment="bottom")
+
+left.text_input("Write something")
+middle.button("Click me", use_container_width=True)
+right.checkbox("Check me")

python/api-examples-source/layout.columns_vertical_alignment.py

@@ -0,0 +1,14 @@
+import streamlit as st
+import numpy as np
+
+vertical_alignment = st.selectbox(
+    "Vertical alignment", ["top", "center", "bottom"], index=2
+)
+
+left, middle, right = st.columns(3, vertical_alignment=vertical_alignment)
+left.image("https://static.streamlit.io/examples/cat.jpg")
+left.markdown("By [@phonvanna](https://unsplash.com/photos/0g7BJEXq7sU)")
+middle.image("https://static.streamlit.io/examples/dog.jpg")
+middle.markdown("By [@shotbyrain](https://unsplash.com/photos/rmkIqi_C3cA)")
+right.image("https://static.streamlit.io/examples/owl.jpg")
+right.markdown("By [@zmachacek](https://unsplash.com/photos/ZN4CzqizIyI)")

python/api-examples-source/requirements.txt

@@ -10,4 +10,5 @@ altair>=5.0.0
 pydeck==0.8.0
 Faker==19.1.0
 openai==1.3.0
-streamlit==1.35.0
+vega_datasets
+streamlit-nightly