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Python ValueError: too many values to unpack [duplicate]
...s is a dict and by default you are iterating over just the keys (which are strings).
Since self.materials has more than two keys*, they can't be unpacked into the tuple "k, m", hence the ValueError exception is raised.
In Python 2.x, to iterate over the keys and the values (the tuple "k, m"), we u...
Best practice for Python assert
...
To be able to automatically throw an error when x become less than zero throughout the function. You can use class descriptors. Here is an example:
class LessThanZeroException(Exception):
pass
class variable(object):
def __init__(self, va...
How to write multiple line string using Bash with variables?
...Below mechanism helps in redirecting multiple lines to file. Keep complete string under " so that we can redirect values of the variable.
#!/bin/bash
kernel="2.6.39"
echo "line 1, ${kernel}
line 2," > a.txt
echo 'line 2, ${kernel}
line 2,' > b.txt
Content of a.txt is
line 1, 2.6.39
line 2...
Why does Ruby 1.9.2 remove “.” from LOAD_PATH, and what's the alternative?
... LOAD_PATH , so this broke them (they reported "no such file to load" for all require statements that based off the project path). Was there a particular justification for doing this?
...
Make WPF window draggable, no matter what element is clicked
...ction of the MSDN page for MouseLeftButtonDown for more info, and for some extra things to be aware of if you're going to be using MouseLeftButtonDown over MouseDown.
– Rachel
Jan 6 '15 at 19:39
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Git Gui: Perpetually getting “This repository currently has approximately 320 loose objects.”
... command line fixed it for me. May be git gui runs something like git gc --extra-unaggressive :)
– sashoalm
Jan 30 '14 at 13:57
38
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How do you convert a time.struct_time object into a datetime object?
...Assuming you have both a time.struct_time object, and some other date/time string, compare the two, and be sure you are not losing data and inadvertently creating a naive datetime object, when you can do otherwise.
For example, the excellent feedparser module will return a "published" field and may...
jQuery hasAttr checking to see if there is an attribute on an element [duplicate]
...
if the name attr is present but empty string, the attribute would exist but the test would fail.
– lambacck
Jun 12 '10 at 4:01
7
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Retrieve CPU usage and memory usage of a single process on Linux?
...onitor it like this, it's using a significant amount of memory so that the extra couple-of-megabytes due to shared mappings isn't an issue.
– caf
Aug 3 '09 at 11:14
5
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Iterate over model instance field names and values in template
...f that instance in table format, with the field name (verbose_name specifically if specified on the field) in the first column and the value of that field in the second column.
...