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Hasher.digest()   A
last analyzed

↳ Parent: Hasher

Complexity

Conditions 4

Size

Total Lines 13

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
cc 4
dl 0
loc 13
rs 9.2
c 0
b 0
f 0
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#!/usr/bin/python
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# -*- coding: UTF-8 -*-
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import hashlib
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class Hasher(object):

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    blocksize = 512*8*128

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    def digest(self, filename):

            


            
                                                                        
                            
            
                                    
            
            

                
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        """Determine the unique hash digest for a file.

            


            
                                                                        
                            
            
                                    
            
            

                
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        Note: takes 26s for a 14GB file.

            


            
                                                                        
                            
            
                                    
            
            

                
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        Args:

            


            
                                                                        
                            
            
                                    
            
            

                
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            filename (str): Path to the file for which a hash digest should be made.

            


            
                                                                        
                            
            
                                    
            
            

                
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        """

            


            
                                                                        
                            
            
                                    
            
            

                
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        hash = hashlib.md5()

            


            
                                                                        
                            
            
                                    
            
            

                
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        with open(filename, "rb") as f:

            


            
                                                                        
                            
            
                                    
            
            

                
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            for block in iter(lambda: f.read(self.blocksize), ""):

            


            
                                                                        
                            
            
                                    
            
            

                
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                hash.update(block)

            


            
                                                                        
                            
            
                                    
            
            

                
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        return hash.hexdigest()

            


            
                                                                                                            
                            
            
                                    
            
            

                
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