app.py

#Run with my server
#http://74.208.182.248:8501
#python3 -m streamlit.cli run agaconverter/converter02.py

#Deplo on internet Hugging face
#https://towardsdatascience.com/3-easy-ways-to-deploy-your-streamlit-web-app-online-7c88bb1024b1

import streamlit as st
import pandas as pd

#@st.experimental_memo
#def convert_df(df):
#   return df.to_csv(index=False).encode('utf-8')
def forma(entra,decimales,espacios):
    if decimales==0:
        a_int=int(entra)
        a_cadena=str(a_int)
        a_espacios=a_cadena.rjust(espacios," ")
    else:    
        a_decimal=float(entra)
        a_cadena=str(round(a_decimal,decimales))
        a_espacios=a_cadena.rjust(espacios," ")
    return a_espacios


st.title('CSV converter from standard format to Weather Extremes extrange format')

st.subheader('Drag and drop here the standard CSV')
spectra = st.file_uploader("upload file", type={"csv", "txt"})
if spectra is not None:
    df = pd.read_csv(spectra)
    st.subheader('This is the standard CSV')
    st.write(df)
    st.subheader('Weather Extremes.exe extrange CSV format')

    data=df.values.tolist()
    st.write(data)

    new_format ="DAYTON,OH,,,,,,,,,,\r\n"
    new_format+="Month,Day,Hour,Drybulb,KT,Horiz_Solar,Direct_Normal,Diffuse,DewPoint,WetBulb,RelHum,WindSpeed\r\n"
    new_format+=" , , ,C, ,kJ/m2,kJ/m2,kJ/m2,C,C,%,m/sec\r\n"
    
    for renglon in range(2,len(data)):
        print(renglon,data[renglon])
        try:
            #a.rjust(15," ")
            #(round(float(data[renglon][3]),1)).rjust(5," ")
            new_format+=data[renglon][0]+','+data[renglon][1]+','+data[renglon][2]+',' +forma(data[renglon][3],1,5)+','+forma(data[renglon][4],2,6)+','+forma(data[renglon][5],0,4)+','+forma(data[renglon][6],0,4)+','+forma(data[renglon][7],0,4)+','+forma(data[renglon][8],1,5)+','+forma(data[renglon][9],1,5)+','+forma(data[renglon][10],1,5)+','+forma(data[renglon][11],1,5)+','+'\r\n'
        except:
            print('error',renglon,data[renglon])

    csv = new_format #convert_df(data)

    st.download_button(
        "Press to Download",
        csv,
        "file.csv",
        "text/csv",
        key='download-csv'
    )