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Technically, why are processes in Erlang more efficient than OS threads?
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There are several contributing factors:
Erlang processes are not OS processes. They are implemented by the Erlang VM using a lightweight cooperative threading model (preemptive at the Erlang level, but under the control of a cooperatively scheduled runtime). This means that it is much chea...
How can I use Python to get the system hostname?
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Use socket and its gethostname() functionality. This will get the hostname of the computer where the Python interpreter is running:
import socket
print(socket.gethostname())
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How to use the C socket API in C++ on z/OS
...'m having issues getting the C sockets API to work properly in C++ on z/OS .
9 Answers
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Python, add trailing slash to directory string, os independently
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os.path.join(path, '') will add the trailing slash if it's not already there.
You can do os.path.join(path, '', '') or os.path.join(path_with_a_trailing_slash, '') and you will still only get one trailing slash.
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How to clear the interpreter console?
Like most Python developers, I typically keep a console window open with the Python interpreter running to test commands, dir() stuff, help() stuff , etc.
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How to perform file system scanning
...lk(). The original is below.
package main
import (
"path/filepath"
"os"
"flag"
"fmt"
)
func visit(path string, f os.FileInfo, err error) error {
fmt.Printf("Visited: %s\n", path)
return nil
}
func main() {
flag.Parse()
root := flag.Arg(0)
err := filepath.Walk(root, visit)
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Python: Best way to add to sys.path relative to the current running script
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This is what I use:
import os, sys
sys.path.append(os.path.join(os.path.dirname(__file__), "lib"))
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Bash script absolute path with OS X
I am trying to obtain the absolute path to the currently running script on OS X.
15 Answers
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Django TemplateDoesNotExist?
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First solution:
These settings
TEMPLATE_DIRS = (
os.path.join(SETTINGS_PATH, 'templates'),
)
mean that Django will look at the templates from templates/ directory under your project.
Assuming your Django project is located at /usr/lib/python2.5/site-packages/projectname/...
Run a Python script from another Python script, passing in arguments [duplicate]
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Try using os.system:
os.system("script2.py 1")
execfile is different because it is designed to run a sequence of Python statements in the current execution context. That's why sys.argv didn't change for you.
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