Python Multiple Lines

Single line with more than 79 characters can be written in multiple lines

total = item_one + \
        item_two + \
        item_three

Method definition or invoking part is more than 79 characters

source_file = os.path.join(config_directory,  "temp_dir",                                 
                           "file1.txt")   

#!/usr/bin/python                                                               
import os                                                                       
                                                                                
config_directory = "test/";                                                     
source_file = os.path.join(config_directory,                                    
                           "file1.txt")                                         
dest_file = os.path.join(config_directory,                                      
                         "file2.txt")                                           
                                                                                
def get_file_data(file_name):                                                   
    if not os.path.exists(file_name):                                           
        return ''                                                               
                                                                                
    try:                                                                        
        with open(file_name,                                                    
                  'r') as f:                                                    
            return f.read()                                                     
    except IOError:                                                             
        print("Error reading file: "                                            
              "%s" % file_name);                                                
        return ''                                                               
                                                                                
file_data = get_file_data(source_file) + "\n" + \                               
            "New line in code";                                                 
                                                                                
with open(dest_file, 'w') as df:                                                
    df.write(file_data);                                                        
os.chmod(dest_file, 0o600);    

$ python test_file_write.py 
$ cat test/file2.txt 
line1
line2

New line in code

Array initialization in multiple lines

list_var = ['one', 'two', 'three',
           'four', 'five'];

#!/usr/bin/python                                                               
                                                                                
list_var = ['one', 'two', 'three',                                              
            'four', 'five'];                                                    
list_var.append('six');                                                         
                                                                                
new_list_var = ['seven', 'eight'];                                              
list_var.extend(new_list_var);                                                  
                                                                                
print list_var;   

$ python test_array.py 
['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight']

Multiple statements in single line

import sys;sys.exit();

Multiple assignment statements in single line?

a = b = c = 1

Multiple assignment statements with different objects in single line

a, b, c = 1, 2, "test"