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Generate a random letter in Python
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Another way, for completeness:
>>> chr(random.randrange(97, 97 + 26))
Use the fact that ascii 'a' is 97, and there are 26 letters in the alphabet.
When determining the upper and lower bound of the random.randrange() function call, remember that random.randr...
Random strings in Python
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You can build random ascii characters like:
import random
print chr(random.randint(0,255))
And then build up a longer string like:
len = 50
print ''.join( [chr(random.randint(0,255)) for i in xrange(0,len)] )
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What is %2C in a URL?
... be checked this way
+----+-----+----+-----+----+-----+----+-----+
| Hx | Chr | Hx | Chr | Hx | Chr | Hx | Chr |
+----+-----+----+-----+----+-----+----+-----+
| 00 | NUL | 20 | SPC | 40 | @ | 60 | ` |
| 01 | SOH | 21 | ! | 41 | A | 61 | a |
| 02 | STX | 22 | " | 42 | B | 62 | b |
| ...
How do I ignore ampersands in a SQL script running from SQL Plus?
...cases you could convert the ampersand from its numeric equivalent as in || Chr(38) || or append it as a single character as in || '&' ||.
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fo...
How can I increment a char?
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In Python 2.x, just use the ord and chr functions:
>>> ord('c')
99
>>> ord('c') + 1
100
>>> chr(ord('c') + 1)
'd'
>>>
Python 3.x makes this more organized and interesting, due to its clear distinction between bytes and un...
Function to convert column number to letter?
...ring
n = ColumnNumber
Do
c = ((n - 1) Mod 26)
s = Chr(c + 65) & s
n = (n - c) \ 26
Loop While n > 0
ColumnLetter = s
End Function
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Unique combination of all elements from two (or more) vectors
...012-05-05")
crossing(a, b)
# A tibble: 15 x 2
a b
<chr> <chr>
1 ABC 2012-05-01
2 ABC 2012-05-02
3 ABC 2012-05-03
4 ABC 2012-05-04
5 ABC 2012-05-05
6 DEF 2012-05-01
7 DEF 2012-05-02
8 DEF 2012-05-03
9 DEF 2012-05-04
10 DEF 2012-05-05
...
How do you create a random string that's suitable for a session ID in PostgreSQL?
...or lower case strings.
template1=> SELECT array_to_string(ARRAY(SELECT chr((65 + round(random() * 25)) :: integer) FROM generate_series(1,12)), '');
array_to_string
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TFBEGODDVTDM
template1=> SELECT array_to_string(ARRAY(SELECT chr((48 + round(random() * 9)) :: integer) FRO...
Encrypt & Decrypt using PyCrypto AES 256
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def _pad(self, s):
return s + (self.bs - len(s) % self.bs) * chr(self.bs - len(s) % self.bs)
@staticmethod
def _unpad(s):
return s[:-ord(s[len(s)-1:])]
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Replace console output in Python
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global progress_x
sys.stdout.write(title + ": [" + "-"*40 + "]" + chr(8)*41)
sys.stdout.flush()
progress_x = 0
def progress(x):
global progress_x
x = int(x * 40 // 100)
sys.stdout.write("#" * (x - progress_x))
sys.stdout.flush()
progress_x = x
def endProgress()...