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Pretty printing XML in Python
...not elem.tail.strip()):
elem.tail = j
return elem
root = ElementTree.parse('/tmp/xmlfile').getroot()
indent(root)
ElementTree.dump(root)
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Standard deviation of a list
...n
stdev = st.pstdev(data)
Approach2: calculate variance and take square root of it
variance = st.pvariance(data)
devia = math.sqrt(variance)
Approach3: using basic math
mean = sum(data)/n
variance = sum([((x - mean) ** 2) for x in X]) / n
stddev = variance ** 0.5
print("{0:0.1f}".format(stdd...
Delete all local changesets and revert to tree
... even smarter approach is to use the revset language, and do:
% hg strip 'roots(outgoing())'
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Pinging servers in Python
...ng
It is pretty simple to use, however, when using this module, you need root access due to the fact that it is crafting raw packets under the hood.
import pyping
r = pyping.ping('google.com')
if r.ret_code == 0:
print("Success")
else:
print("Failed with {}".format(r.ret_code))
...
Namespace not recognized (even though it is there)
... came to my mind. I looked at the path of my project and realized that the root folder, the one created by source tree, had "%20" instead of _ in the name. I changed it to _ and everything works fine now.
– Fernando Wolff
May 30 '19 at 19:04
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differentiate null=True, blank=True in django
...ent kinds of "blanky" values. I just tested this behaviour with Django 1.8/MySQL 5.6
– Edward D'Souza
Aug 3 '16 at 17:14
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Setting WPF image source in code
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/Path: the name of the resource file, including its path, relative to the root of the referenced assembly's project folder.
The three slashes after application: have to be replaced with commas:
Note: The authority component of a pack URI
is an embedded URI that points to a
package and mu...
What is the difference between HTTP_HOST and SERVER_NAME in PHP?
... digging in some PHP bug reports regarding the subject, I learned that the root of the problem is in web server used, that it incorrectly returned HTTP Host header when SERVER_NAME was requested. So I dug into Apache HTTPD bug reports using various keywords regarding the subject and I finally found ...
Where do I put image files, css, js, etc. in Codeigniter?
... One better might be to have a your assets folder in the web root (mine is public_html) folder and then CI in a directory above the web root.
– Nate Nolting
Aug 7 '14 at 21:39
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AngularJS access parent scope from child controller
...other controllers, you can install a "hook" to the global scope:
function RootCtrl($scope) {
$scope.root = $scope;
}
Then in any child controller, you can access the "global" scope with $scope.root. Anything you set here will be globally visible.
Example:
function RootCtrl($scope) {
...