After a lot of research, I have figured out how to manipulate a Ubuntu LibreOffice Calc sheet using Python 3.7 and PyCharm and MySQL. I'm a Newbie at all of this, so please excuse my coding, I'm still learning. I have supplied links to information sources I used to complete this project.
The main stumbling block that was causing me problems, was not understanding that LibreOffice needed to be initiated prior to connecting through the socket. After that I was able to use Uno and other modules to interact with the Calc spreadsheet. I have supplied copies of all my Py scripts. Hopefully this will help anyone who like me is new to this environment.
# opens connection to mysql database GVWC
import mysql.connector
import pandas as pd
from gui import validateLogin
def conn_mysql():
validateLogin #opens input box for username and password
us, pw=validateLogin() #returns login info
cnx = mysql.connector.connect(user=us, password=pw ,host='localhost', database= 'GVWC') # connects to DB
pd.set_option('display.max_columns', None)
df = pd.read_sql("SELECT * FROM GVWC.2020", cnx) #runs query
return df, pd #returns data
print("Database connection resolved.")
# connection to libreoffice
import uno
import os
import time
def lo_conn():
#Open socket to LibraOffice with delay to allow program to wait for connection
os.popen('/usr/lib/libreoffice/program/soffice --accept="socket,host=localhost,port=2002;urp;StarOffice.ServiceManager"')
time.sleep(3) # Sleep for 3 seconds
#=======================================================================================================================================
# get the uno component context from the PyUNO runtime
localContext = uno.getComponentContext()
# create the UnoUrlResolver
resolver = localContext.ServiceManager.createInstanceWithContext(
"com.sun.star.bridge.UnoUrlResolver", localContext)
# connect to the running office
ctx = resolver.resolve("uno:socket,host=localhost,port=2002;urp;StarOffice.ComponentContext")
smgr = ctx.ServiceManager
# create input box for login info
from tkinter import *
from functools import partial
def validateLogin(username, password):
#print("username entered :", username.get())
#print("password entered :", password.get())
global pw
pw = password.get()
global us
us = username.get()
return us, pw
#window
tkWindow = Tk()
tkWindow.geometry("500x100+500+300")
tkWindow.title('Tkinter Login Form - pythonexamples.org')
#username label and text entry box
usernameLabel = Label(tkWindow, text="User Name").grid(row=0, column=0)
username = StringVar()
usernameEntry = Entry(tkWindow, textvariable=username).grid(row=0, column=1)
#password label and password entry box
passwordLabel = Label(tkWindow,text="Password").grid(row=1, column=0)
password = StringVar()
passwordEntry = Entry(tkWindow, textvariable=password, show='*').grid(row=1, column=1)
validateLogin = partial(validateLogin, username, password)
#login button
loginButton = Button(tkWindow, text="Login", command=validateLogin).grid(row=4, column=0)
tkWindow.mainloop()
#main program to create spreedsheet and fill with data from mysql
import os
from workingConn3 import conn_mysql
from lo_conn_3 import lo_conn
def main():
conn_mysql # call mysql def connection
df,pd=conn_mysql() # pass table data
lo_conn #connect to Libreoffice
# open calc and fill spreedsheet
#=====================================================================================================================================
writer = pd.ExcelWriter('Test_DF.xlsx',
engine='xlsxwriter',
datetime_format='mm/dd/yyyy')
df.to_excel(writer, index=False, sheet_name='TEST',
startrow=5, header = 4)
#Get the xlsxwriter objects from the dataframe writer object.
workbook = writer.book
worksheet = writer.sheets['TEST']
#Add a header format.
header_format = workbook.add_format({
'font_color': 'white',
'text_wrap': True,
'font_name': 'Calibri',
'font_size': 11,
'fg_color': '#44546a'})
# Write the column headers with the defined format.
for col_num, value in enumerate(df.columns.values):
worksheet.write(5, col_num, value, header_format)
colwidths = {}
# Store the defaults.
for col in range(14):
colwidths[col] = 15
# Then set the column widths.
for col_num, width in colwidths.items():
worksheet.set_column(col_num, col_num, width)
#Center text of column
cell_format = workbook.add_format()
cell_format.set_align('center')
worksheet.set_column('E1:E100',15,cell_format)
worksheet.set_column('F1:F100',15,cell_format)
worksheet.set_column('M1:M100',15,cell_format)
# Freeze pane on the header row.
#
worksheet.freeze_panes(6, 0)
worksheet.autofilter('A6:O6')
#Button text
worksheet.write('A3', 'Press the button to say hello.')
# Add a button tied to a macro in the VBA project.
worksheet.insert_button('A1', {'macro': 'start',
'caption': 'Press Me',
'width': 80,
'height': 30})
# Close the Pandas Excel writer and output the Excel file.
writer.save()
writer.close()
#reopen excel file
os.popen('/usr/lib/libreoffice/program/soffice Test_DF.xlsx --accept="socket,host=localhost,port=2002;urp;StarOffice.ServiceManager"')
if __name__== "__main__" :
main()
https://medium.com/analytics-vidhya/macro-programming-in-openoffice-libreoffice-with-using-python-en-a37465e9bfa5
https://medium.com/analytics-vidhya/starting-libreoffice-with-python-macro-programming-in-openoffice-libreoffice-with-using-10310f9e69f1
https://pjryan126.github.io/jupyter-db-connections/
http://christopher5106.github.io/office/2015/12/06/openoffice-libreoffice-automate-your-office-tasks-with-python-macros.html
https://help.libreoffice.org/6.4/en-US/text/shared/guide/start_parameters.html?&DbPAR=WRITER&System=UNIX
https://www.saltycrane.com/blog/2010/02/using-python-write-excel-openoffice-calc-spreadsheet-ubuntu-linux/
Add dataframe and button to same sheet with XlsxWriter
https://pynative.com/python-mysql-database-connection/
Thanks to everyone who helped.
