Summary
I have installed streamlit to a new env (Python_Streamlit) as per instruction. Everything seems to be okay - I checked on a terminal running python and importing streamlit. However when I try run a scrpt file called main.py with a very basic statement to import streamlit and run 3-4 statements. I get the follwowing error message. Being a newcomer to streamlit, these all seems totally strange to me. Could someone help me resolve this issue please?
"(Python_Streamlit) C:\Users\olall>streamlit run main.py
Traceback (most recent call last):
File “C:\Users\olall.conda\envs\Python_Streamlit\Scripts\streamlit-script.py”, line 5, in
from streamlit.cli import main
File “C:\Users\olall.conda\envs\Python_Streamlit\Lib\site-packages\streamlit_init_.py”, line 70, in
from streamlit.delta_generator import DeltaGenerator as _DeltaGenerator
File “C:\Users\olall.conda\envs\Python_Streamlit\Lib\site-packages\streamlit\delta_generator.py”, line 73, in
from streamlit.elements.arrow_altair import ArrowAltairMixin
File “C:\Users\olall.conda\envs\Python_Streamlit\Lib\site-packages\streamlit\elements\arrow_altair.py”, line 25, in
from altair.vegalite.v4.api import Chart
ModuleNotFoundError: No module named ‘altair.vegalite.v4’ "
Steps to reproduce
Code snippet:
import streamlit as st
header = st.container()
dataset = st.container()
features = st.container()
modelTraining = st.container()
with header:
st.title('Welcometo my awesome data science project')
``
**Expected behavior:**
I expected a a browser to open with the title printed "Welcome to my awesome data science project"
**Actual behavior:**
See error message above!
### Debug info
- Streamlit version: (latest)
- Python version: (latest)
- Using Conda
OS version: Windows 10