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Allowed characters in Linux environment variable names
...d
Utilities volume of IEEE Std
1003.1-2001 consist solely of uppercase letters, digits, and the '_'
(underscore) from the characters
defined in Portable Character Set and
do not begin with a digit. Other
characters may be permitted by an
implementation; applications shall
tolerate th...
What is the use of hashCode in Java?
...n the example, let's use a really simple way of doing this - the number of letters in the name of the object. So the cabbage goes in box 7, the pea goes in box 3, the rocket in box 6, the banjo in box 5 and so on.
What about the rhinoceros, though? It has 10 characters, so we'll change our algorith...
What's the best way to bundle static resources in a Go program? [closed]
...l) // w is an io.Writer
Only thing you have to be careful about is that raw string literals cannot contain the back quote character (`). Raw string literals cannot contain sequences (unlike the interpreted string literals), so if the text you want to embed does contain back quotes, you have to br...
Show the progress of a Python multiprocessing pool imap_unordered call?
...gress
import multiprocessing as mp
from time import sleep
def my_function(letter):
sleep(2)
return letter+letter
dummy_args = ["A", "B", "C", "D"]
pool = mp.Pool(processes=2)
results = []
pbar = ProgressBar(widgets=[SimpleProgress()], maxval=len(dummy_args)).start()
r = [pool.apply_asyn...
Python multiprocessing pool.map for multiple arguments
...
It seems to me that RAW_DATASET in this case should be a global variable? While I want the partial_harvester change the value of case in every call of harvester(). How to achieve that?
– xgdgsc
Sep 2 '13 at...
R object identification
...n what's revealed. For example, try with:
obj <- data.frame(a=1:26, b=letters)
obj <- list(a=1:26, b=letters, c=list(d=1:26, e=letters))
data(cars)
obj <- lm(dist ~ speed, data=cars)
..etc.
If obj is an S3 or S4 object, you can also try methods or showMethods, showClass, etc. Patrick ...
What algorithm gives suggestions in a spell checker?
...efinite. So you design a hash function that treats all vowels as the same letter. An easy way to do that is to first "normalize" the input word and then put the normalized result through a regular hash function. In this example, the normalizing function might drop all the vowels, so definite beco...
How to sparsely checkout only one single file from a git repository?
...th placeholders for user, project, branch, filename.
GitHub
wget https://raw.githubusercontent.com/user/project/branch/filename
GitLab
wget https://gitlab.com/user/project/raw/branch/filename
GitWeb
If you're using Git on the Server - GitWeb, then you may try in example (change it into the r...
Do you need to dispose of objects and set them to null?
...ormat suitable for program use. You can end up with a private copy of the raw data that serves no further purpose. (Real world example: The parsing is a two-pass routine and thus can't simply process the data as it's read.)
– Loren Pechtel
Jun 2 '10 at 1:25
...
How to get the name of enumeration value in Swift?
If I have an enumeration with raw Integer values:
12 Answers
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