Search⌘ K
Home
Courses
Python 3: An interactive deep dive

Binary Files

We'll cover the following...

Not all files contain text. Some of them contain pictures of my dog.

Python 3.5
an_image = open('beauregard.jpg', mode='rb')                                 #①
print (an_image.mode)                                                        #②
#rb
print (an_image.name)                                                        #③
#'beauregard.jpg'
print (an_image.encoding)                                                    #④
#Traceback (most recent call last):
#   File "__ed_file.py", line 8, in <module>
# print (an_image.encoding) #\u2463
#AttributeError: '_io.BufferedReader' object has no attribute 'encoding'

① Opening a file in binary mode is simple but subtle. The only difference from opening it in text mode is that the mode parameter contains a 'b' character.

② The stream object you get from opening a file in binary mode has many of ...