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Beginner in Python : Different files (CSV, Excel) using Pandas Module in python


By : Dave
Date : September 19 2020, 04:00 AM
Hope that helps how to Import each of the three separate files and merge them into one dataframe. (One is CSV File and other two are excel File) using Pandas so that I visualize in tabular format. Then Set "TIMEFRAME" as the index on your combined dataframe.
code :
import pandas as pd

a = pd.read_csv('tst.csv') 
b = pd.read_excel('tst.xlsx')
res = pd.concat([a, b])


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xlswriter - Python module to create excel files


By : lomang
Date : March 29 2020, 07:55 AM
around this issue I can add the data to another worksheet. And then refer the data from that worksheet.
Demo
code :
import xlsxwriter

workbook = xlsxwriter.Workbook('chart_line.xlsx')
worksheet = workbook.add_worksheet()
worksheet1 = workbook.add_worksheet()
# Add the worksheet data to be plotted.
data = [10, 40, 50, 20, 10, 50]
worksheet1.write_column('A1', data)

# Create a new chart object.
chart = workbook.add_chart({'type': 'line'})

# Add a series to the chart.
chart.add_series({'values': '=Sheet2!$A$1:$A$6'})

# Insert the chart into the worksheet.
worksheet.insert_chart('C1', chart)

workbook.close()

Python built-in module for handling Excel files


By : KeiroS
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Not really the prettiest solution, but you could download the complete code repository of one of the excel handling packages for python (openpyxl for example) and put these files in the same directory as the python script that you're going to run. Subsequently you can do an import of these local package files in your script.
Note: if the excel handling package has dependencies on other packages, then you'll need to download these as well.

Python, Pandas to combine Excel files into 1, with files names as Column A


By : Marks Klava
Date : March 29 2020, 07:55 AM
Hope that helps I am combining Excel spreadsheets into 1 spreadsheet, and want to insert the filenames of the spreadsheets as first column when they are combined. , I believe you dont need MultiIndex, only change:
code :
data.index = pd.MultiIndex.from_tuples([(file_date)] * len(data))
data.index = [file_date] * len(data)

Trying to compare 2 excel files via python and pandas


By : user3210483
Date : March 29 2020, 07:55 AM
hop of those help? Background: I have 2 files, with few matching columns and there is a common column between them for comparison. , IIUC, use pandas.DataFrame.update:
Given:
code :
# df1
   col1  col2 col3
0  adam  key1  def
1  mike  key2  efg
# df2
   col1  col2 col3 col4
0  adam  key1  def  abc
1  mike  key2       cdf


new_df = df1.set_index('col1')
new_df.update(df2.set_index('col1'))
new_df.reset_index(inplace=True)
print(new_df)
   col1  col2 col3
0  adam  key1  def
1  mike  key2     
df1[(new_df != df1).any(1)]
   col1  col2 col3
1  mike  key2  efg
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