Version 1.42.0

[mathcatsand]

Highlights

• Introducing st.login() and st.logout() to authenticate users with any OpenID Connect provider.

Notable Changes

• st.table supports Markdown (#8785, #10088).
• st.spinner can show elapsed time with show_time=True (#6805, #10072).
• st.image supports Markdown in the caption parameter (#6808, #10075).
• st.code has a height parameter (#7418, #10080).
• ↔️ Most charts default to using use_container_width=True (#10064).
• SnowflakeConnection was updated to match the current Snowflake API, which changes its handling of keyword arguments in some cases (#10122).
• Users can drag and drop dataframe columns to rearrange them (#8796, #10099).

Other Changes

• Dataframes have column menus for users to sort and pin columns (#10206).
• Dataframes support categorical indices (#9647, #10195).
• Dataframes show a hover highlight on rows (#8096, #10104).
• When dataframes have cell values that are inconsistent with their configured type, Streamlit shows a tooltip describing the error (#8253, #9899).
• If there is an existing asyncio event loop when a Streamlit app starts, the app will reuse it instead of creating a new one (#10164). Thanks, DeltaGa!
• Streamlit recognizes pyspark.sql.connect.dataframe.DataFrame objects as dataframes (#9953, #9954). Thanks, OSalama!
• We’ve updated emoji validation for new emojis (#10149).
• Material Symbols have been updated with the latest icons (#10247).
• Visual tweaks and improvements (#8705, #9823, #10047, #10048, #10083, #10087, #10225).
• st.image displays rounded corners for consistent design (#9999).
• Bug fix: Top margin is applied correctly in st.columns (#10265, #10268).
• Bug fix: react-syntax-highlighter is aliased to prevent rendering errors in st.code (#10231, #10244).
• Bug fix: We improved error messages for st.query_params (#10111, #10237).
• Bug fix: Linting for st.altair_chart recognizes all Altair chart types (#10202).
• Bug fix: st.dataframe supports raw Arrow data (#5606, #10191).
• Bug fix: st.navigation and st.page_link work when running in pure Python tests (#10163).
• Bug fix: Retries were added to prevent a possible race condition when files are removed while Streamlit is running (#10148).
• Bug fix: When printing an app, st.logo will only print once (#10165, #10171).
• Bug fix: Material icons are marked to prevent translation (#10168, #10174).
• Bug fix: st.vega_lite_chart correctly caches and updates its data (#6689, #10125).
• Bug fix: When a fragment ID is not found, Streamlit logs a warning but doesn’t raise an error (#9921, #10130).
• Bug fix: The label on st.expander correctly fades when stale (#10085).
• Bug fix: st.date_input provides better type hinting for its return value (#9477, #9620). Thanks, pranaybattu!
• Bug fix: In dataframes, small float values display their first significant figure instead of displaying as 0 (#10060).
• Bug fix: When rich is installed, errors are only logged once. (#10097).
• Bug fix: st.text preserves whitespace (#10055, #10062).
• Bug fix: Dataframe width is not ignored when height is changed (#9762, #10036).
• Bug fix: Multi index columns correctly handle empty labels (#9749, #10035).
• Bug fix: Pinned columns respect column_order in when configured in st.dataframe (#9997, #10034).
• Bug fix: Tooltips don’t overflow to the left or right (#9288, #9452, #9983).
• Bug fix: Disabled feedback widgets correctly show their value (#10030).
• Bug fix: Widgets correctly submit values if a user edits the value and immediately clicks a button (#10007, #10018).
• Bug fix: Some MIME types have been hardcoded to protect against browser misconfiguration (#10004, #10010).
• Bug fix: Files that unnecessarily inflated Streamlit’s installation size were removed (#10008, #10011).
• Bug fix: st.date_input gives the correct type hint for the value parameter (#10005, #10006).
• Bug fix: st.write passes to st.html when ._repr_html() is present for an object (#9910).
• Bug fix: st.html preserves target=_blank if set in an HTML string (#9972, #9994).

[shawngiese]

@mathcatsand

OpenID Connect

Excited to start testing with OpenID.

[nnecula]

It would be great is for st.logout() can also pass a URL that we want to redirect to. Now it only goes to /auth/logout and for Azure auth it needs to be /.auth/logout.

Thanks!

[mick76]

@mathcatsand

• st.table supports Markdown (#8785, #10088).

Now its impossible to show styled dataframes with st.table?

[mathcatsand]

@mick76 Do you have an example of styled dataframes not working anymore?

[mick76]

Hi, sorry for my late answer.

Here is my example code:

def redgreen(x):
    style_lt = "background-color: lightgreen; color: black; font-weight: normal;"
    style_gt = "background-color: orangered; color: black; font-weight: normal;"
    is_negative = x < 200
    return [style_gt if i else style_lt for i in is_negative]

index_names = {'selector': 'th,td', 'props': [('font-style', 'normal'), ('font-weight', 'bold'), ('font-size', '12px')]}
properties = {'border': '2px solid black', 'color': 'black', 'font-size': '12px', 'text-align': 'right', 'font-weight': 'bold'}
df_styled = df.style.set_table_styles([index_names])\
              .set_properties(**properties)\
              .apply(redgreen, subset=['Price'])\
              .format({
                 "Strike": "${:.2f}",
                 "Price": "${:,.2f}",
                 "opt. price": "${:.2f}",
                 "Entry": "${:,.2f}"})\
              .hide(axis="index")

col1, col2 = st.columns(2)

with col1:
   st.table(df_styled)

Streamlit 1.41.1:

Streamlit 1.43:

[mathcatsand]

@mick76 It looks like most of the style is coming through correctly. Is it just font weight that stopped working for you?

[mick76]

That seems to be the case.