Ben Felder pykong

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Tech priest at the Adeptus Mechanicus, Biochemist, Pythonista, MLOps Guru at day, AI M.Sc. Student at night and Builder of Joyful Tools.

39 followers · 30 following

Adeptus Mechanicus
Germany
16:20 (UTC +02:00)
https://resume.github.io/?pykong

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pykong / infinite_loop.py

Last active November 13, 2017 19:40

https://stackoverflow.com/questions/23416381/circular-list-iterator-in-python

	from itertools import cycle

	lst = ['a', 'b', 'c']

	pool = cycle(lst)

	for item in pool:
	print(item)

pykong / dict_pop.py

Last active November 12, 2017 15:44

Note that if the second argument, i.e. None is not given, KeyError is raised if the key is not in the dictionary. Providing the second argument prevents the conditional exception. This is unlike the mydict.get() method, which defaults to None. https://stackoverflow.com/questions/15411107/delete-a-dictionary-item-if-the-key-exists

mydict.pop("key", None)

pykong / repl_last_char.py

Last active November 12, 2017 09:09

Also, note the elegant usage of an index to slice string. https://stackoverflow.com/questions/14496006/finding-last-occurrence-of-substring-in-string-replacing-that

	old_string = "this is going to have a full stop. some written sstuff!"
	k = old_string.rfind(".")
	new_string = old_string[:k] + ". - " + old_string[k+1:]

pykong / ssh_key.sh

Last active December 13, 2018 08:03

https://serverfault.com/questions/241588/how-to-automate-ssh-login-with-password https://stackoverflow.com/questions/112396/how-do-i-remove-the-passphrase-for-the-ssh-key-without-having-to-create-a-new-ke

	Don't use a password. Generate a passphraseless SSH key and push it to your VM.

	If you already have an SSH key, you can skip this step… Just hit Enter for the key and both passphrases:

	$ ssh-keygen -t rsa -b 2048
	Generating public/private rsa key pair.
	Enter file in which to save the key (/home/username/.ssh/id_rsa):
	Enter passphrase (empty for no passphrase):
	Enter same passphrase again:
	Your identification has been saved in /home/username/.ssh/id_rsa.

pykong / sync_with_main_repo.sh

Created November 2, 2017 18:32

	# list remotes
	git remote -v

	# add remote
	git remote add upstream https://github.com/SublimeLinter/SublimeLinter3.git

	# sync with main repo
	git pull upstream master

pykong / git_push.sh

Created November 2, 2017 17:22

	git add *
	git status -s
	git commit -m "YOUR COMMIT MESSAGE"
	git push origin feature_name

pykong / list_v_tuple.py

Created November 1, 2017 19:21

Be careful with single item tuples!

	l = ['Your Code Here']
	t = ('Your Code Here')

	for item in l:
	print(item)

	for item in t:
	print(item)

pykong / boolean_indices.py

Created November 1, 2017 18:11

In Python, not only is 0 False and 1 True, but True is 1 and False is 0. This means you can do weird things like:

	>>> a = 1
	>>> (a==1) + (a>0) + (a==2)
	2

pykong / git_auth.txt

Created October 31, 2017 23:15

https://stackoverflow.com/questions/37047914/git-clone-fails-with-gnutls-error

	sudo xed ~/.netrc

	machine github.com
	login USER_NAME
	password ACCESS_TOKEN

	machine api.github.com
	login USER_NAME
	password ACCESS_TOKEN

pykong / reraise_exc.py

Created October 31, 2017 15:27

https://stackoverflow.com/questions/9157210/how-do-i-raise-the-same-exception-with-a-custom-message-in-python

	except ValueError as err:
	err.strerror = "New error message"
	raise err

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