hi! Trying to run streamlit apps in pants. How can I do it once it can only run through its CLI?

Hi @breezy-apple-27122 👋 I have no idea what you just asked 😉 --so more context needed or hope others know streamlit to fill you in

Maybe this link could help. https://docs.streamlit.io/library/get-started/main-concepts

this is one way to do it.. but it didn’t seem to work fully..

diff --git a/requirements.txt b/requirements.txt
index 979167d..1b0ae39 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,8 @@
 ansicolors==1.1.8
 setuptools>=56.2.0,<57
 types-setuptools>=56.2.0,<58
-pytest==7.1.3
\ No newline at end of file
+pytest==7.1.3
+streamlit
+numpy
+pandas
+
diff --git a/streamlit/BUILD b/streamlit/BUILD
new file mode 100644
index 0000000..57aee72
--- /dev/null
+++ b/streamlit/BUILD
@@ -0,0 +1,2 @@
+python_sources()
+pex_binary(name="bin", script="streamlit", dependencies=["./demo.py"])
diff --git a/streamlit/BUILD~ b/streamlit/BUILD~
new file mode 100644
index 0000000..db46e8d
--- /dev/null
+++ b/streamlit/BUILD~
@@ -0,0 +1 @@
+python_sources()
diff --git a/streamlit/demo.py b/streamlit/demo.py
new file mode 100644
index 0000000..b891ac3
--- /dev/null
+++ b/streamlit/demo.py
@@ -0,0 +1,36 @@
+import streamlit as st
+import pandas as pd
+import numpy as np
+
+st.title('Uber pickups in NYC')
+
+DATE_COLUMN = 'date/time'
+DATA_URL = ('<https://s3-us-west-2.amazonaws.com/>'
+            'streamlit-demo-data/uber-raw-data-sep14.csv.gz')
+
+@st.cache_data
+def load_data(nrows):
+    data = pd.read_csv(DATA_URL, nrows=nrows)
+    lowercase = lambda x: str(x).lower()
+    data.rename(lowercase, axis='columns', inplace=True)
+    data[DATE_COLUMN] = pd.to_datetime(data[DATE_COLUMN])
+    return data
+
+data_load_state = st.text('Loading data...')
+data = load_data(10000)
+data_load_state.text("Done! (using st.cache_data)")
+
+if st.checkbox('Show raw data'):
+    st.subheader('Raw data')
+    st.write(data)
+
+st.subheader('Number of pickups by hour')
+hist_values = np.histogram(data[DATE_COLUMN].dt.hour, bins=24, range=(0,24))[0]
+st.bar_chart(hist_values)
+
+# Some number in the range 0-23
+hour_to_filter = st.slider('hour', 0, 23, 17)
+filtered_data = data[data[DATE_COLUMN].dt.hour == hour_to_filter]
+
+st.subheader('Map of all pickups at %s:00' % hour_to_filter)
+st.map(filtered_data)
diff --git a/streamlit/demo.py~ b/streamlit/demo.py~
new file mode 100644
index 0000000..e69de29

$ pants run streamlit:bin -- run streamlit/demo.py
2023-02-24 09:59:45.409 WARNING streamlit.config:
Warning: the config option 'server.enableCORS=false' is not compatible with 'server.enableXsrfProtection=true'.
As a result, 'server.enableCORS' is being overridden to 'true'.

More information:
In order to protect against CSRF attacks, we send a cookie with each request.
To do so, we must specify allowable origins, which places a restriction on
cross-origin resource sharing.

If cross origin resource sharing is required, please disable server.enableXsrfProtection.


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  As an open source project, we collect usage statistics. We cannot see and do
  not store information contained in Streamlit apps. You can find out more by
  reading our privacy policy at: <https://streamlit.io/privacy-policy>

  If you'd like to opt out of usage statistics, add the following to
  ~/.streamlit/config.toml, creating that file if necessary:

    [browser]
    gatherUsageStats = false

2023-02-24 09:59:56.323 DEBUG   streamlit.web.bootstrap: Setting up signal handler
2023-02-24 09:59:56.323 DEBUG   asyncio: Using selector: KqueueSelector
2023-02-24 09:59:56.324 DEBUG   streamlit.web.server.server: Starting server...
2023-02-24 09:59:56.324 DEBUG   streamlit.web.server.server: Serving static content from the Node dev server
2023-02-24 09:59:56.367 DEBUG   streamlit.web.server.server: Server started on port 8501
2023-02-24 09:59:56.367 DEBUG   streamlit.web.server.server: Server state: State.INITIAL -> State.WAITING_FOR_FIRST_SESSION
2023-02-24 09:59:56.726 DEBUG   git.cmd: Popen(['git', 'version'], cwd=/Users/andreas.stenius/src/github/kaos/example-python, universal_newlines=False, shell=None, istream=None)
2023-02-24 09:59:56.744 DEBUG   git.cmd: Popen(['git', 'version'], cwd=/Users/andreas.stenius/src/github/kaos/example-python, universal_newlines=False, shell=None, istream=None)
2023-02-24 09:59:56.755 DEBUG   git.util: Failed checking if running in CYGWIN due to: FileNotFoundError(2, 'No such file or directory')
2023-02-24 09:59:56.848 DEBUG   git.cmd: Popen(['git', 'version'], cwd=/Users/andreas.stenius/src/github/kaos/example-python, universal_newlines=False, shell=None, istream=None)
2023-02-24 09:59:56.859 DEBUG   git.cmd: Popen(['git', 'rev-parse', '--show-toplevel'], cwd=/Users/andreas.stenius/src/github/kaos/example-python, universal_newlines=False, shell=None, istream=None)

  You can now view your Streamlit app in your browser.

  Local URL: <http://localhost:3000>
  Network URL: <http://10.0.0.62:3000>

  For better performance, install the Watchdog module:

  $ xcode-select --install
  $ pip install watchdog

2023-02-24 09:59:56.893 DEBUG   streamlit.version: Skipping PyPI version check
^C  Stopping...
2023-02-24 10:02:23.039 DEBUG   streamlit.web.server.server: Server state: State.WAITING_FOR_FIRST_SESSION -> State.STOPPING
2023-02-24 10:02:23.040 DEBUG   streamlit.web.server.server: Server state: State.STOPPING -> State.STOPPED
Interrupted by user.

thanks! will check anyway! I didn't know about the

script="streamlit"

to use a cli command!

https://www.pantsbuild.org/docs/reference-pex_binary#codescriptcode 🙂

still lots of things for me to learn. I couldn't find it in examples....

you’re welcome. and feel free to keep asking questions. 👍

I'm still getting issues on running. Don't know why actually

We are on pants 2.15, and this is working using pants cli. Question is, how to run the packaged pex_binary? Seems like it is not possible to point streamlit to the script file within the pex?

FWIW, I got my streamlit app working with this config:

pex_binary(
    name="dashboard",
    execution_mode="venv",
    script="streamlit",
    args=["run", "ux/dashboard.py"],
    dependencies=["//ux/dashboard.py", "//:root#streamlit"],    
)

And then I can run

./dist/ux/dashboard.pex