用Python写过哪些脑洞大开的小工具？

#!/usr/bin/env python2.7
# --*-- encoding: utf-8 --*--

# enable print(,end='')
#from __future__ import print_function 
import argparse
import sys
import os
import re
import bs4
import urlparse
import requests

def download(url, out, title):
    #out = url.split('/')[-1]
    resp = requests.get(url, stream=True)
    if resp.status_code != requests.codes.ok:
        return False

    total = resp.headers.get('content-length')
    if total is None:
        total = 0
    else:
        total = int(total)

    def show_progress(total, acc):
        if total == 0:
            sys.stdout.write("{} ?\r".format(out))
        else:
            #sys.stdout.write("{} [ {:3d}% ]\r".format(100*acc/total, out))
            sys.stdout.write("{} \"{}\" {:3d}%\r".format(title, out, 100*acc/total))
        sys.stdout.flush()

    acc = 0
    show_progress(total, acc)
    with open(out, 'wb') as f:
        for chunk in resp.iter_content(chunk_size=1024): 
            if chunk: # filter out keep-alive new chunks
                f.write(chunk)
                f.flush()
                acc += len(chunk)
                show_progress(total, acc)
    sys.stdout.write("\n")

    return True

def fetch(from_url, offset, count):
    with open(from_url, "r") as f:
        html = f.read()
    soup = bs4.BeautifulSoup(html)

    # get title
    content = soup.find_all("h2", class_="first")
    if len(content) == 0:
        print("title not found!")
        return
    elif len(content) != 1:
        print("title not unique!")

    fdir = content[0].contents[0].encode("utf8").strip().replace("–", "-")
    if not os.path.exists(fdir):
        os.mkdir(fdir)
        print("mkdir: \"{}\"".format(fdir))

    # get image url
    content = soup.find_all("div", id=re.compile("^post-"))
    if len(content) == 0:
        print("target not found!")
        return
    elif len(content) != 1:
        print("target not unique!")

    imgs = content[0].find_all("img")
    start = 0 if offset is None else offset
    end = len(imgs) if count is None else (start+count)
    print("# of image: {}".format(nimg))

    for idx in range(start, end):
        img = imgs[idx]
        url = str(img.attrs["src"])
        #url = url.replace("http://t10", "http://i10")
        url = url.replace("http://t", "http://i")
        ext = url[url.rfind("."):]
        out = "{0}/{1}{2}".format(fdir, idx+1, ext)

        # get image file
        for retry in range(0, 5):
            title = ("({{:{}d}}/{{}})".format(len(str(end))).format(idx+1, end))
            if download(url, out, title):
                break
            print("failed, try again ({})".format(retry+1))


def main():
    parser = argparse.ArgumentParser(description='nah')
    parser.add_argument('urls', type=str, nargs="+", help='Specify URLs')
    parser.add_argument('--offset', type=int, nargs="?", help='offset')
    parser.add_argument('--count', type=int, nargs="?", help='count')
    args = parser.parse_args()
    for url in args.urls:
        fetch(url, args.offset, args.count)

if __name__ == "__main__":
    main()

import Image
 
color = 'MNHQ$OC?7>!:-;.' #zifu
 
def to_html(func):
    html_head = '''
            
              
                
              
             '''
    html_tail = ''
 # ding yi HTML
    def wrapper(img):
        pic_str = func(img)
        pic_str = ''.join(l + ' 
' for l in pic_str.splitlines())
        return html_head + pic_str + html_tail
 
    return wrapper
 # fan hui zhi
@to_html
def make_char_img(img):
    pix = img.load()
    pic_str = ''
    width, height = img.size
    for h in xrange(height):
        for w in xrange(width):
            pic_str += color[int(pix[w, h]) * 14 / 255]
        pic_str += '\n'
    return pic_str
 
def preprocess(img_name):
    img = Image.open(img_name)
 
    w, h = img.size
    m = max(img.size)
    delta = m / 200.0
    w, h = int(w / delta), int(h / delta)
    img = img.resize((w, h))
    img = img.convert('L')
 
    return img
 
def save_to_file(filename, pic_str):
    outfile = open(filename, 'w')
    outfile.write(pic_str)
    outfile.close()
 
def main():
    img = preprocess(raw_input('input your filename:'))
    pic_str = make_char_img(img)
    save_to_file('char.html', pic_str)
 
if __name__ == '__main__':
    main()