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Python pip install fails: invalid command egg_info
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Install distribute, which comes with egg_info.
Should be as simple as pip install Distribute.
Distribute has been merged into Setuptools as of version 0.7. If you are using a version <=0.6, upgrade using pip install --upgrade setuptools or easy_i...
Class type check in TypeScript
...sFish(pet)) {
pet.swim();
}
else {
pet.fly();
}
See more at:
https://www.typescriptlang.org/docs/handbook/advanced-types.html
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How to calculate a logistic sigmoid function in Python?
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204
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Does it make sense to use “as” instead of a cast even if there is no null check? [closed]
... of a normal cast wrapped with a try-catch block. Moreover, use of as is recommended over a type check followed by a cast. Instead of:
if (x is SomeType)
((SomeType)x).SomeMethod();
which generates an isinst instruction for the is keyword, and a castclass instruction for the cast (effectively ...
How do you Force Garbage Collection from the Shell?
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350
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Getting a random value from a JavaScript array
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84
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Creating a ZIP Archive in Memory Using System.IO.Compression
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Thanks to https://stackoverflow.com/a/12350106/222748 I got:
using (var memoryStream = new MemoryStream())
{
using (var archive = new ZipArchive(memoryStream, ZipArchiveMode.Create, true))
{
var demoFile = archive.CreateEntry("foo.txt");
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String concatenation vs. string substitution in Python
... the string concatenation has seen large boosts in performance, is this (becoming more) a stylistic decision rather than a practical one?
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How to Implement Custom Table View Section Headers and Footers with Storyboard
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385
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'Incomplete final line' warning when trying to read a .csv file into R
...file, by using command below:
json_data<-fromJSON(paste(readLines("json01.json"), collapse=""))
; and I resolve it by my above method.
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