lbenet

randyzwitch

#Python/pypy
import math
def smallestdivisall(n):
    for i in xrange(1, math.factorial(n)+1):
        for j in xrange(1, n+1):
            if i % j != 0:
                break
            elif j == n:
                return i
                

rossant

Problems with HDF5

• Corruption: not sure why, sometimes files get corrupted during a session and users lose all their work, either automatic or manual, which may correspond to days of computer time or, worse, human time. Corruption is more likely to happen because libhdf5 is a very complex piece of software, and a crash or sudden kill is likely to corrupt the file completely. This would be much rarer with flat binary or text files, at least you'd be able to recover part of the data.

• Not possible to delete arrays, but that might be fixed in the future (not today though...).

• Various bugs with strings on Windows and h5py: users may need to downgrade h5py in order to use their files, otherwise a nasty segfault occurs. Not a good sign...

• There is a single implementation of HDF5 in the world, so we depend critically on it. It is almost impossible to contribute on such a complex piece of code since it is really low-level (in C). There are bugs and performance issues with it and there is nothing we can

jiahao

#Working version
using JSON
auth_token= #fill in to access Github API

function getcontribs(owner, repo, auth_token)
    #Download information about contributors
    page, authors=0, {}
    while true #Download every page
        page += 1
        url="https://api.github.com/repos/$owner/$repo/contributors?page=$(page)&access_token=$(auth_token)"

musalbas

Dear British Airways,

I am concerned that you have not handled my personal information properly.

Recently, I tried to check-in online on your website, but the interstitial page did not redirect me, and thus I was unable to check-in. I discovered that this was because my adblocker was enabled. After disabling my adblocker, I discovered that your check-in page was leaking my booking reference and surname to countless third parties for advertising purposes, including Twitter, LinkedIn and Google Doubleclick. I've attached for some network logs from Chrome's web developer console for some example evidence.

I do not recall explicitly consenting for my information to be shared in this way, nor do I see any way to opt-out or withdraw my consent. This all appears to be a violation of article 7 of GDPR for conditions of consent, which states "where processing is based on consent, the controller shall be able to demonstrate that the data subject has consented to processing of his or her personal data" and "the data

lahwran

This list was originally authored by a friend who has been learning programming for some time (tuningmind)

Programming learning resources

Note: Many books may be available from a nearby public library. Check there as well!

These two are about the best I've seen for starting from scratch:

• Head First Programming (book, for pay: amazon, python 3)

konrad

#!/usr/bin/env bash

# Returns a BibTeX (www.bibtex.org) entry for one or more given DOIs
# (https://www.doi.org/).
#
# Call it like this:
#
# $ doi2bibtex.sh 10.1093/bioinformatics/btu533
#
# Can also be used for several DOIs at once:

svaksha

#!/usr/bin/env bash

# Returns a BibTeX (www.bibtex.org) entry for one or more given DOIs
# (https://www.doi.org/).
#
# Call it like this:
#
# $ doi2bibtex.sh 10.1093/bioinformatics/btu533
#
# Can also be used for several DOIs at once:

tshort

Matthew Dowle is working on a fast CSV reader for data.table. Here is test data case generated in R along with some timings:

require(data.table)

n=1e6
DT = data.table( a=sample(1:1000,n,replace=TRUE),
                 b=sample(1:1000,n,replace=TRUE),
                 c=rnorm(n),
                 d=sample(c("foo","bar","baz","qux","quux"),n,replace=TRUE),

staticfloat

Julia Debugging Procedures

So you managed to break Julia. Congratulations! Collected here are some general procedures you can undergo for common symptoms encountered when something goes awry. Including the information from these debugging steps can greatly help the maintainers when tracking down a segfault or trying to figure out why your script is running slower than expected.

If you've been directed to this page, find the symptom that best matches what you're experiencing and follow the instructions to generate the debugging information requested. Table of symptoms:

• Segfaults during bootstrap (sysimg.jl)

• Segfaults when running a script