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UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte
...ASCII you should just encode everything. For characters in the 7-bit ASCII range this encoding will be an identity mapping.
– Tadeusz A. Kadłubowski
Mar 6 '14 at 7:47
35
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How to reset sequence in postgres and fill id column with new data?
...
FYI: If you need to specify a new startvalue between a range of IDs (256 - 10000000 for example):
SELECT setval('"Sequence_Name"',
(SELECT coalesce(MAX("ID"),255)
FROM "Table_Name"
WHERE "ID" < 10000000 and "ID" >= 256)+1
);
...
How to randomly pick an element from an array
...ook at this question:
How do I generate random integers within a specific range in Java?
You will want to generate a random number from 0 to your integers length - 1. Then simply get your int from your array:
myArray[myRandomNumber];
...
Trim spaces from end of a NSString
...ngByTrimmingTrailingCharactersInSet:(NSCharacterSet *)characterSet {
NSRange rangeOfLastWantedCharacter = [self rangeOfCharacterFromSet:[characterSet invertedSet]
options:NSBackwardsSearch];
if (rangeOfLastWantedCharacter.locatio...
Why would I use Scala/Lift over Java/Spring? [closed]
... in fairly short order.
Both frameworks are compelling. There's a broad range of apps where you can choose either and do well.
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Read file from line 2 or skip header row
...ns the comma-delimited
strings on each line as a list"""
for _ in range(numberheaderlines):
yield map(str.strip, filehandle.readline().strip().split(','))
with open('coordinates.txt', 'r') as rh:
# Single header line
#print next(__readheader(rh))
# Multiple header line...
How do I lowercase a string in C?
... @hatorade: tolower() leaves argument unchanged if it is not in 'A'..'Z' range.
– jfs
Apr 18 '10 at 18:20
1
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How do you find the sum of all the numbers in an array in Java?
...nt startInclusive, int endExclusive) which permits you to take a specified range of the array (which can be useful) :
int sum = Arrays.stream(new int []{1,2,3,4}, 0, 2).sum(); //prints 3
Finally, it can take an array of type T. So you can per example have a String which contains numbers as an inp...
python pandas dataframe to dictionary
...his ugly but working code:
>>> mydict = {}
>>> for x in range(len(ptest)):
... currentid = ptest.iloc[x,0]
... currentvalue = ptest.iloc[x,1]
... mydict.setdefault(currentid, [])
... mydict[currentid].append(currentvalue)
>>> mydict
{'a': [1, 2], 'b': [3]}...
month name to month number and vice versa in python
...g this way: month_cal = dict((v,k) for v,k in zip(calendar.month_abbr[1:], range(1, 13))), and then month_cal[shortMonth]
– Matt W.
Jul 12 '18 at 17:29
3
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