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super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh
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print type(NewStyle) # prints <type 'type'>
Note that in Python 3.x, all classes are new-style. You can still use the syntax from the old-style classes but you get a new-style class. So, in Python 3.x you won't have this problem.
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postgresql COUNT(DISTINCT …) very slow
...DISTINCT()) performs sorting, it will be definitely helpful to have an index on the column_name especially with relatively small amount of work_mem (where hashing will produce relatevely large amount of batches). Since that, it's not always bad to use COUNT (DISTINCT()_, isn't?
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Anaconda vs. EPD Enthought vs. manual installation of Python [closed]
...ckages, and even more if you use any of the Enthought packages (Chaco for example is very useful for realtime data visualization), then EPD/Canopy is probably a better choice. The Academic version has a larger number of packages in the base install, and many more in the repository. Anaconda also inc...
What does multicore assembly language look like?
Once upon a time, to write x86 assembler, for example, you would have instructions stating "load the EDX register with the value 5", "increment the EDX" register, etc.
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Adding a Method to an Existing Object Instance
I've read that it is possible to add a method to an existing object (i.e., not in the class definition) in Python.
16 Answ...
The apk must be signed with the same certificates as the previous version
...ey. If the package name and signing certificate do not match those of the existing version, Market will consider it a new application and will not offer it to users as an update.
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How can I round to whole numbers in JavaScript?
...be Math.ceil() would be more appropriate
– martellalex
Jul 11 '17 at 12:42
1
@martellalex: From t...
Are custom elements valid HTML5?
...n and reuse not possible with script
libraries today.
However, from this excellent walk through article on Google Developers about Custom Elements v1:
The name of a custom element must contain a dash (-). So <x-tags>, <my-element>, and <my-awesome-app> are all valid names, while ...
What are the relationships between Any, AnyVal, AnyRef, Object and how do they map when used in Java
I usually end up trying every combination until it compiles. Can somebody explain what I should use where?
3 Answers
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Convert string to integer type in Go?
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For example,
package main
import (
"flag"
"fmt"
"os"
"strconv"
)
func main() {
flag.Parse()
s := flag.Arg(0)
// string to int
i, err := strconv.Atoi(s)
if err != nil {
// handle error...