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Error: “dictionary update sequence element #0 has length 1; 2 is required” on Django 1.4
...I forgot to put name= on the last argument of the url (or path in Django 2.0+) function call.
For instance, the following functions throw the error from the question:
url(r'^foo/(?P<bar>[A-Za-z]+)/$', views.FooBar.as_view(), 'foo')
path('foo/{slug:bar}/', views.FooBar, 'foo')
But these act...
Python argparse mutual exclusive group
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106
add_mutually_exclusive_group doesn't make an entire group mutually exclusive. It makes options ...
How to open a web server port on EC2 instance
I'm running a CherryPy web server at 0.0.0.0:8787 on an EC2 instance.
3 Answers
3
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Position geom_text on dodged barplot
..."dodge", which is just a shortcut without any parameter.
In ggplot2_2.0.0 you find several examples in ?geom_text on how to position geom_text on dodged or stacked bars (the code chunk named "# Aligning labels and bars"). The Q&A What is the width argument in position_dodge? provides a more...
How to make an immutable object in Python?
..."b"])
It does not solve the problem that attributes can be accessed via [0] etc., but at least it's considerably shorter and provides the additional advantage of being compatible with pickle and copy.
namedtuple creates a type similar to what I described in this answer, i.e. derived from tuple an...
Using numpad in Vi (Vim) via PuTTY
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+100
The answer is in Numpad in PuTTY while using vi [Cialug]:
In the configuration, go to Terminal->Features and check "Disable
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Check a collection size with JSTL
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<c:if test="${companies.size() > 0}">
</c:if>
This syntax works only in EL 2.2 or newer (Servlet 3.0 / JSP 2.2 or newer). If you're facing a XML parsing error because you're using JSPX or Facelets instead of JSP, then use gt instead of >.
<c...
“Order by Col1, Col2” using entity framework
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answered Nov 9 '09 at 12:09
KonamimanKonamiman
46.7k1616 gold badges106106 silver badges131131 bronze badges
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How to get the date from jQuery UI datepicker
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CoolEshCoolEsh
3,02611 gold badge1717 silver badges2424 bronze badges
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Ruby Array find_first object?
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203
Either I don't understand your question, or Enumerable#find is the thing you were looking for.
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