to_string(): DataFrame to string

Pandas Pandas input output

Returns console-friendly tabular string from the DataFrame.
import pandas as pd
We can store the string in a file .
str1=df.to_string() # collect the string in a variable 
fob=open('D:\\my_data\\my_file.txt','w') # file object
fob.write(str1)    # write to file. 
This will create a file my_file.txt with the data from DataFrame inside my_data directory of D drive.
Python Pandas string output from DataFrame & using MySQL sample table as source by to_string()


Some of the important options are explained here


By default all columns are taken,however we can specify which columns to only include.
'   NAME  ID\n0  Ravi   1\n1  Raju   2\n2  Alex   3'


We can hide the header by setting it to False. We can also give aliases to use as column names.
'  NAME1 ID2 MATH3 ENGLISH4\n0  Ravi   1    30       20\n1  Raju   2    40       30\n2  Alex   3    50       40'


We can hide the index column by setting it to False ( default is True )


Minimum width of each column.


String representation of NaN to use


left, right , center ...

Using SQLAlchemy

We will collect records from our sample student table in MySQL database and display as string using to_string().
Collect SQL dump of sample student table below.
Read more on MySQL with SQLAlchemy connection. you can add path if you want the file to be created with the string ( sample is given above )
import pandas as pd 
from sqlalchemy import create_engine
my_conn = create_engine("mysql+mysqldb://userid:pw@localhost/my_db")
sql="SELECT * FROM student LIMIT 0,10 "
df = pd.read_sql(sql,my_conn)

From Excel file to string output

In above code we have created one DataFrame by taking data from a MySQL database table. We can create DataFrame by using any excel data or by using any csv file or from any other sources. ( check here to create a DataFrame from 8 different sources )
Once a DataFrame is created, then using that we can create string output by using to_string(). Here is one example to read one Excel file to a DataFrame and generate the string, you can explore other sources to create a DataFrame and finally generate string / file.
We used read_excel() to read our sample student.xlsx file.
df=pd.read_excel("D:\\my_data\\student.xlsx") # Path of the file. 
We can read one csv file by using read_csv()
df=pd.read_csv("D:\\my_data\\student.csv") # change the path

Data input and output from Pandas DataFrame
Pandas read_csv() read_excel() read_json() to_csv() to_excel()

Post your comments , suggestion , error , requirements etc here

Python Video Tutorials
Python SQLite Video Tutorials
Python MySQL Video Tutorials
Python Tkinter Video Tutorials
We use cookies to improve your browsing experience. . Learn more
HTML MySQL PHP JavaScript ASP Photoshop Articles FORUM . Contact us
©2000-2021 All rights reserved worldwide Privacy Policy Disclaimer