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Why does Pycharm's inspector complain about “d = {}”?
... believes dict() is a literal. It could just mean that it doesn't complain for:
dic = dict()
dic['aaa'] = 5
HTH!
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How do I print the full value of a long string in gdb?
... length of a C-string in GDB. By default it's being abbreviated, how do I force GDB to print the whole string?
6 Answers
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pass **kwargs argument to another function with **kwargs
...arguments: filename, mode and a dictionary (kwargs). But Python expects: 2 formal arguments plus keyword arguments.
By prefixing the dictionary by '**' you unpack the dictionary kwargs to keywords arguments.
A dictionary (type dict) is a single variable containing key-value pairs.
"Keyword argume...
Fastest way to convert Image to Byte array
... In order to convert an image to a byte array you have to specify an image format - just as you have to specify an encoding when you convert text to a byte array.
If you're worried about compression artefacts, pick a lossless format. If you're worried about CPU resources, pick a format which doesn'...
Git diff between current branch and master but not including unmerged master commits
...int where branch diverged from master.
Git diff supports a special syntax for this:
git diff master...branch
You must not swap the sides because then you would get the other branch. You want to know what changed in branch since it diverged from master, not the other way round.
Loosely related:
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How do I edit an incorrect commit message with TortoiseGit?
...NING: Use "Create branch at this version" to set a temporary branch name before resetting to the commit you want to modify. Otherwise, you risk losing all the commits above this point. (If this already happened to you, git reflog will help you to retrieve them).
– Steve Pitche...
Remove file from SVN repository without deleting local copy
...y available in svn 1.5.0+. I'm afraid you have to manually copy the file beforehand or check it out using svn cat afterwards.
– phihag
May 12 '09 at 8:51
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Why does “,,,” == Array(4) in Javascript?
... ",,," == Array(4).toString()
",,," == ["", "", "", ""] // note 3 commas for 4 values
",,," == ["", "", "", ""].toString()
Are all similar.
== does implicit type conversions before comparing the values, which can result in unpredictable results. Use === to check the type and the value.
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Create list of single item repeated N times
...
You can also write:
[e] * n
You should note that if e is for example an empty list you get a list with n references to the same list, not n independent empty lists.
Performance testing
At first glance it seems that repeat is the fastest way to create a list with n identical elem...
Error in Swift class: Property not initialized at super.init call
...amming Language, which answers your question:
“Swift’s compiler performs four helpful safety-checks to make sure
that two-phase initialization is completed without error:”
Safety check 1 “A designated initializer must ensure that all of the
“properties introduced by its class ...