Please read this open letter to students with homework problems. In short, we are not here to do your work, we are not here to help you cheat on your work. It is assigned to you because it will help you develop skills that you need to succeed in your program of study, and giving an answer here will be not only academically dishonest but also detrimental to you in the long run. Cheating like this is not acceptable. — nanofarad 33 secs ago

Search Software Recommendations for appropriate libraries. — Thomas Matthews 18 secs ago

yes, everything depends on contention. And extreme contention happen often for inexperienced programmers. Most popular question at SO is ”why my parallel program works slower than sequentional” - the answer is because synchronization operations take more than computational. — Alexei Kaigorodov 41 secs ago

Please take a look at Open letter to students with homework problems and How do I ask and answer homework questions? — Modus Tollens 53 secs ago

See this — Sweeper 17 secs ago

And this: softwareengineering.stackexchange.com/questions/40373/… — Slaw 19 secs ago

Please at least make an attempt yourself. See: Open letter to students with homework problems — Andreas 53 secs ago

Welcome to stack overflow. Here we can help you with your coding issues. However, we're not a software design forum. There are other sites in the stack exchange network, for instance for code review, computer science, software engineering and mathematics. Plus there are many forums on the internet, as well as resources discussing the problem you describe. — JHBonarius 1 min ago

Open letter to students with homework problems — Andreas 42 secs ago

Careful! Crypto is very hard to get right. Wise programmers don't use — O. Jones 10 secs ago

Off topic but you should use (i + 1) in the question when asking for names since everyone else except us programmers start counting at 1 :) — Joakim Danielson 43 secs ago

Hi, the problem with your question is that it doesn't follow basic principles of SO question - it is very broad to answer. Much better site (where to post it) would be softwareengineering.stackexchange.com . SO questions are more technically related like "I have problem with this part of code, how to solve it" and not "please analyze my code and tell me which way should I point my architecture to". Wish you the best. :-) — Tatranskymedved 36 secs ago

StackOverflow is not a homework service. Make a fair attempt and come back with specific questions about that attempt. See also the open letter to students with homework problems. — Willem Van Onsem 25 secs ago

Yes, but your coding style is confusing for other programmers to read. And I believed that added to the confusion. The added ppid, c_pid and status variables and the extra get_child_exit_status and child functions did not help. — Cheatah 39 secs ago

Don't do it by yourself. Real world programmers typically work in teams. get used to workshopping problems with your peers by teaming up with your classmates. That said, Stack Overflow expects you to come with some evidence that we won't be doing all of the work while you play foosball. In this regard we're just like your peers. — user4581301 51 secs ago

@tdelaney if you have a file without any extension, that is considered a folder. That's why programmers choose the extension .pickle by convention. — Navaneeth Reddy 47 secs ago

@Zeval I am not sure neither, but I have seen unix users using cPickle instead of pickle. I use pickle since I'm a windows user. But we are programmers, we just try stuff until it tends to work right. — Navaneeth Reddy 13 secs ago

Links to code are "Not Useful". Links rot and without the code the question cannot help future programmers. — user4581301 27 secs ago

"Is there any web service or software to do this?" Stackoverflow is not the appropriate place to ask this. You should ask here: softwarerecs.stackexchange.com See: stackoverflow.com/help/on-topic — Ryan 48 secs ago

Iterator is a recognized design pattern. Please just don't call anything around that somehow "resembles" an iterator by this name, it is simply misleading new comers because it is a strict concept in the software engineering. — bloody 25 secs ago

Iterator is a recognized design pattern. Please just don't call anything around that somehow "resembles" an iterator by this name, it may be simply misleading for new comers because it has been a strict concept in the software engineering. Not that I have anything against your proposal :) — bloody 33 secs ago

please consider to read this on meta: Open letter to students with homework problems — fantaghirocco 7 secs ago

Hello Mauro. Having your previous question closed didn't happen without a reason. If it wasn't clear to you why it was closed, you should have asked instead of opening an identical question. Your question was closed because it's considered off-topic for this site. Stack Overflow is meant to be a Q&A site about specific programming problems. What you need is software recommendation and there's a site just for that. I suggest you ask there. Good luck! — El_Vanja 58 secs ago

Welcome to Stack Overflow. Please read Open Letter to Students with Homework Problems. You can't just dump your problem statement here and expect us to do it for you. It's also a good idea to take the tour, read about what's on-topic in the help center, and How to Ask. — Chris 40 secs ago