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Can I call a base class's virtual function if I'm overriding it?
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Interesting. After reading this answer I thought with protected inheritance the fact that Derived is derived from Base would be only visible to the class itself and not visible to the outside too.
– Darkproduct
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Printing Lists as Tabular Data
...Alice | 24 |
| Bob | 19 |
+-------+-----+
PrettyTable has options to read data from csv, html, sql database. Also you are able to select subset of data, sort table and change table styles.
3. texttable: https://pypi.python.org/pypi/texttable
from texttable import Texttable
t = Texttable()
t....
Sending email with PHP from an SMTP server
...o "Check your email now....<BR/>";
?>
or, for more details, read on.
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Getting the first character of a string with $str[0]
...orter and is easier to remember than substr($str, 0, 1), this confuses who reads the code.
– trante
Nov 2 '13 at 10:13
10
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iOS: Use a boolean in NSUserDefaults
...@"logged_in"];
[[NSUserDefaults standardUserDefaults] synchronize];
and read it by using this code:
if(![[NSUserDefaults standardUserDefaults] boolForKey:@"logged_in"]) {
[self displayLogin];
} else {
[self displayMainScreen];
}
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Explanation of BASE terminology
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The CAP "theorem" is dissected mathematically (but very readably) and discussed in a uniquely intelligent way by Mark Burgess, whose article I'm in progress reading. (I was linked there in the first place by Wikipedia.)
– Wildcard
Mar 28 '16...
write a shell script to ssh to a remote machine and execute commands
...currently:
pssh -i -h hosts.txt -p 100 -t 0 sleep 10000
Options:
-I: Read input and sends to each ssh process.
-P: Tells pssh to display output as it arrives.
-h: Reads the host's file.
-H : [user@]host[:port] for single-host.
-i: Display standard output and standard error as each host...
Is it possible only to declare a variable without assigning any value in Python?
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I'd heartily recommend that you read Other languages have "variables" (I added it as a related link) – in two minutes you'll know that Python has "names", not "variables".
val = None
# ...
if val is None:
val = any_object
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How to import classes defined in __init__.py
...s" % (os.path.basename(root), f)
print open(os.path.join(root, f)).read()
print
# lib/helper.py
print 'helper'
class Helper(object):
def __init__(self, module_name):
print "Helper in", module_name
# lib/settings.py
print "settings"
import helper
class Values(object):...
How to automate createsuperuser on django?
...s via a cascade delete. A safer option is to simply bail-out if the user already exists (or update the existing User record).
– Will
Jan 7 '17 at 1:15
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