从目录中提取随机图像，编码为base64，然后打印

Question

I'm having difficult time trying to work these two together. It's frustrating me a little, so I hope to find ideas/solutions.

The complete works (what I'm planning on) should grab a random image from an online directory, encode it to base64 then print the base64. I've had total curl madness going all day and now I'm turning to python. Onwards!

These are kinda just notes at the minute but should explain the process.

import random, os
import base64

def search(): #get file
    path = r"/Users/Impshum/Pictures" #should be able to http
    random_filename = random.choice([
        x for x in os.listdir(path)
        if os.path.isfile(os.path.join(path, x))
    ])
    print(random_filename) #not printing full location


def encode(): #encode to base64
    image = open('heaven.jpg', 'rb')
    image_read = image.read()
    image_64_encode = base64.encodestring(image_read)
    print image_64_encode

search() #notes
encode() #notes

Many thanks in advance.

Answer 1

You have most of the code you need

import random, os
import base64

def search(path): #get file
    random_filename = random.choice([
        x for x in os.listdir(path)
        if os.path.isfile(os.path.join(path, x))
    ])
    return os.path.join(path, random_filename)


def encode(path):
    image = open(path, 'rb')
    image_read = image.read()
    image.close()
    image_64_encode = base64.encodestring(image_read)
    return image_64_encode

print(encode(search(r"/Users/Impshum/Pictures")))

There are things you can do to make this "nicer", but this should get you started.

For instance, you might want to use glob instead of os.listdir / os.path.join, etc. And using a context manager

import glob
import base64
import random

def search(path): #get file
    random_filename = random.choice(glob.glob(path))
    return random_filename


def encode(path):
    with open(path, 'rb') as image:
        image_read = image.read()
        image_64_encode = base64.encodestring(image_read)
        return image_64_encode

print(encode(search(r"/Users/Impshum/Pictures/*")))

Error handling is left as an exercise to the OP