大约有 11,000 项符合查询结果（耗时：0.0371秒） [XML]
List comprehension vs map
...? Is either of them generally more efficient or considered generally more pythonic than the other?
11 Answers
...
Compiling C++ on remote Linux machine - “clock skew detected” warning
I'm connected to my university's small Linux cluster via PuTTY and WinSCP, transferring files using the latter and compiling and running them with the former. My work so far has been performed in the university's labs, but today I have been doing some work at home that generated an interesting warn...
Setting default permissions for newly created files and sub-directories under a directory in Linux?
...002 or 007 or something of that nature---this is why Debian and many other linux systems are configured with per-user groups by default.
I don't know of a way to force the permissions you want if the user's umask is too strong.
...
How do I check what version of Python is running my script?
How can I check what version of the Python Interpreter is interpreting my script?
21 Answers
...
Is Python interpreted, or compiled, or both?
... there are C interpreters and projects that attempt to compile a subset of Python to C or C++ code (and subsequently to machine code).
Second, compilation is not restricted to ahead-of-time compilation to native machine code. A compiler is, more generally, a program that converts a program in one p...
How can I add the sqlite3 module to Python?
... me how to install the sqlite3 module alongside the most recent version of Python?
I am using a Macbook, and on the command line, I tried:
...
Broken references in Virtualenvs
...u create a virtualenv, many symlinks are created to the Homebrew installed Python.
Here is one example:
$ ls -la ~/.virtualenvs/my-virtual-env
...
lrwxr-xr-x 1 ryan staff 78 Jun 25 13:21 .Python -> /usr/local/Cellar/python/2.7.7/Frameworks/Python.framework/Versions/2.7/Python
...
When you ...
How to check if a process id (PID) exists
...s for most purposes more or less equivalent to checking if it exists. See linux.die.net/man/2/kill and linux.die.net/man/7/signal
– Christoffer Hammarström
Jun 15 '10 at 10:58
...
When should iteritems() be used instead of items()?
...instead of iteritems() in all places? Why was iteritems() removed from Python 3? Seems like a terrific and useful method. What's the reasoning behind it?
...
importing pyspark in python shell
...If you don't bother about how it works!!!)
Use findspark
Go to your python shell
pip install findspark
import findspark
findspark.init()
import the necessary modules
from pyspark import SparkContext
from pyspark import SparkConf
Done!!!
...