![]() When a popular application offers an API, programmers usually write easy-to-use libraries (which act as an abstraction layer to the API, often called wrappers), for a programmer who wants to communicate with the application, instead of reading the reference about the API endpoints, it’s more straightforward to just download a library in their programming language of choice, and read its documentation, which is often more idiomatic, and faster to get used to. Try it out!ĭisclosure: This post may contain affiliate links, meaning when you click the links and make a purchase, we receive a commission.Īutomation is becoming more and more popular every day, and so, popular services and applications nowadays often offer an interface for programmatic use, this interface is what we call an API, or Application Programming Interface, examples of applications offering an API include Google Drive, Google Search and Github.Īn API is a set of endpoints any programmer can use to communicate with a service, without having to try imitating a user using the application, which is often not possible because of captchas becoming more and more widely used. Print "info:",bz2.decompress(urllib.Confused by complex code? Let our AI-powered Code Explainer demystify it for you. ''.join(re.findall(), text) is always better than (re.findall(), text), because it avoids the possible ‘index out of range’ problem.Ĭookies = ().getheaders('Set-Cookie')īyte = cookies.split(' ').split('=') (re.findall(), text) returns a list of one(or zero) element. New_(('Cookie','info='+urllib.quote_plus(message))) Print bz2.decompress(urllib.unquote_plus(out)) Num, info = get_cookie_info(new_url + num) Info = urllib.unquote_plus(cookies.value) Opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))Ĭookies = cj.make_cookies(response, request)ĭigits = ''.join(re.findall(r'busynothing is (\d+)', text)) Import cookielib, urllib2, urllib, re, bz2, time, xmlrpclib What’s worse, this level connects other levels, which include level 4, 8 and 13. ![]() Cookielib is the new module that seems hard to understand. I am totally new to the the concept of Cookie and header. ‘Cookie’ clearly indicates to investigate what’s in level 4. ![]() This level is way too complicated than I thought. #data = urllib.urlretrieve(url, 'deltas.gz') Import urllib, Image, gzip, StringIO, difflibįin = gzip.GzipFile(fileobj=StringIO.StringIO(data)) ‘ ‘ means the string is common, ‘- ‘ means it’s unique in a and ‘+ ‘ means it’s unique in b.open() opens a file as a file object, to write to it use. list(difflib.ndiff(a, b)) converts the object to a list, in which each string has a ‘+ ‘, ‘- ‘ or ‘ ‘ at the start. difflib.ndiff(a, b) compares the two lists of strings and return a generator object(which generates delta lines). The most interesting module at this level is difflib. Some lines are same, and others are different. I was naive to think it’s just the subtraction of the two images, I should mock myself, I mean it’s level 18! ‘brightness.html’ leads to ‘deltas.gz’, and the unzipped file shows hex numbers in two parts. That being said, I decide to call a timeout, during which I will focus more on systematically learning Python. It’s getting too much for me as a Python beginner. This doesn’t help much regarding learning Python, and as the levels go up it takes more and more time to just figure out how the answers work. On one hand I got exposed to new stuff every level and learned a lot, on the other hand I am not really challenging myself, instead just googling and searching for answers. I have got mixed feelings about PythonChallenge. # if part.get_content_maintype() = 'audio': #data = base64.b64decode(msg.get_payload(0).get_payload()) #msg = ssage_from_file(open('19.txt'))ĭata = msg.get_payload(0).get_payload(decode=True) Import urllib, base64, wave, email, re, StringIO I am including some good alternative snippets that can get the job done. Combined with the ‘endian’ hint, a big endian. I was too unpythonic not realize using email and re module to get the base64 encoded message. A lot of info from the html, indian.wav file indicates wave module. I didn’t get the map part, it turns out to be a hint: ‘Indian’ just like ‘endian’.
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