Importing Pandas as pd

Summary

I am attempting to create a few different pages, but I am having trouble importing pandas when also importing streamlit commands from a function.

Steps to reproduce

Main.py

import streamlit as st
import pandas as pd
import sqlite3

from Title import entry_form

# ######### Database ##########
conn = sqlite3.connect(r"G:\General\Solar\R_and_D\CodeLibrary\Python\CRUD\Database\data.db")
c = conn.cursor()

# ######### Menu ###################
menu_list = ['Title', 'Climate', 'Design', 'Layout', 'Performance']
choice = st.sidebar.radio(label='Menu',
                          options=menu_list)

# ########## Title Page ##########            
if choice == 'Title': 
    entry_form()

Title.py

import streamlit as st
import pandas as pd

from Sqlite import *


def entry_form():
    """
    User form to choose or upload a new solar project
    """
    
    import pandas as pd
    
    st.title("User Entry Form")
    
    region_list = ['West', 'South', 'East']
    region = st.selectbox('Region', region_list, index=0)    
    df = pd.read_sql_query("SELECT * from projtable", conn)
    df = df.where(df['region'] == region).dropna()
    
    st.subheader('Project Entry')
    project_list = list(df['project'])
    project_list.sort()
    project = st.selectbox('Project', project_list)
    project_new = st.text_input('New Project Name')
    if project_new != '':
        project = project_new
    df = df.where(df['project'] == project).dropna()
    
    st.subheader('Version Control')
    version_list = list(df['version'])
    version_list.sort()
    version = st.selectbox('Version', version_list)
    version_new = st.text_input('New Version')
    if version_new != '':
        version = version_new
    
    st.subheader('User')
    user_list = ['Angel_Velasco',
                 'Cameron_Nielsen',
                 'James_Alfi',
                 'Kurt_Rhee',
                 'Marine_Bila',
                 'Phil_Timm']
    user = st.selectbox('Username', user_list, index=3)
    
    if st.button('Add'):
        create_table()
        add_data(user, region, project, version)
        st.success('Project Saved')

    df

Expected behavior:

I would expect that importing pandas in the Title.py scipt would not give a NameError pd is not defined

Actual behavior:

Is this a regression?

I have not tried this in previous versions.

Debug info

• Streamlit version: 0.62.0
• Python version: 3.7
• Using Conda
• OS version: Windows 10
• Browser version: Chrome

Additional information

N/A

[kurt-rhee]

@nthmost Hey, I’ve been upgrading streamlit as new versions come out and haven’t had this issue again. I think the solution may just be to update if people are still using 0.62.

I think this is safe to close.

[nthmost]

Hi @kurt-rhee – is there a simplified repro you can provide for this bug? I.e. the shortest possible script that produces this error. It seems pretty mysterious and I haven’t been able to repro it myself yet.