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subtract two times in python
I have two datetime.time values, exit and enter and I want to do something like:
9 Answers
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How do you embed binary data in XML?
...wo applications written in Java that communicate with each other using XML messages over the network. I'm using a SAX parser at the receiving end to get the data back out of the messages. One of the requirements is to embed binary data in an XML message, but SAX doesn't like this. Does anyone kno...
How do I install the yaml package for Python?
...ng PyYaml, yamltools, and PySyck, among others (Note that PySyck docs recommend using PyYaml, since syck is out of date). Now you know a specific package name, you can install it:
$ pip install pyyaml
If you want to install python yaml system-wide in linux, you can also use a package manager, li...
Given a URL to a text file, what is the simplest way to read the contents of the text file?
...t urllib2
for line in urllib2.urlopen(target_url):
print line
But remember in Python, readability matters.
However, this is the simplest way but not the safe way because most of the time with network programming, you don't know if the amount of data to expect will be respected. So you'd gene...
Can I load a UIImage from a URL?
...ge (got it from UIImagePickerController) but I no longer have the image in memory (the URL was saved from a previous run of the app). Can I reload the UIImage from the URL again?
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ArrayIndexOutOfBoundsException when using the ArrayList's iterator
...g iterator twice in each iteration, you're getting new iterators all the time.
The easiest way to write this loop is using the for-each construct:
for (String s : arrayList)
if (s.equals(value))
// ...
As for
java.lang.ArrayIndexOutOfBoundsException: -1
You just tried to get el...
Group By Multiple Columns
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@HoGo anonymous typed objects implement their own Equals and GetHashCode methods which is used when grouping the objects.
– Byron Carasco
Sep 7 '17 at 18:57
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How do you add a Dictionary of items into another Dictionary
...tion for this, I tried everything except this. But you can drop the @assignment and return, you're already mutating left. Edit: actually, even though I get no errors, I think @assignment should stay.
– Roland
Jun 9 '14 at 12:02
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Using Intent in an Android application to show another activity
...d that as an application node, it worked properly.
<activity android:name=".OrderScreen" />
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How do I check that a Java String is not all whitespaces?
....matches(".*\\w.*")) ...
...which checks for at least one (ASCII) alphanumeric character.
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