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Determine if Python is running inside virtualenv
...o the virtual environment, and sys.base_prefix is the prefix of the system Python the virtualenv was created from.
The above always works for Python 3 stdlib venv and for recent virtualenv (since version 20). Older versions of virtualenv used sys.real_prefix instead of sys.base_prefix (and sys.real_...
Should all Python classes extend object?
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In Python 2, not inheriting from object will create an old-style class, which, amongst other effects, causes type to give different results:
>>> class Foo: pass
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>>> type(Foo())
<type 'instance'>
v...
What is the difference between '/' and '//' when used for division?
Is there a benefit to using one over the other? In Python 2, they both seem to return the same results:
13 Answers
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What is the difference between Python and IPython?
What exactly is the difference between Python and IPython ?
7 Answers
7
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How do I get the directory that a program is running from?
...t bytes = GetModuleFileName(NULL, pBuf, len);
return bytes ? bytes : -1;
Linux:
int bytes = MIN(readlink("/proc/self/exe", pBuf, len), len - 1);
if(bytes >= 0)
pBuf[bytes] = '\0';
return bytes;
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How to determine CPU and memory consumption from inside a process?
...astUserCPU = user;
lastSysCPU = sys;
return percent * 100;
}
Linux
On Linux the choice that seemed obvious at first was to use the POSIX APIs like getrusage() etc. I spent some time trying to get this to work, but never got meaningful values. When I finally checked the kernel sources ...
Can you add new statements to Python's syntax?
Can you add new statements (like print , raise , with ) to Python's syntax?
13 Answers
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Terminal Multiplexer for Microsoft Windows - Installers for GNU Screen or tmux [closed]
... Yes, Vagrant makes it much easier than it used to be to quickly install a Linux VM on a Windows machine. Note that perhaps the OP doesn't want a Linux VM: e.g. perhaps he is low on RAM.
– unforgettableidSupportsMonica
Dec 29 '14 at 2:47
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Java “Virtual Machine” vs. Python “Interpreter” parlance?
It seems rare to read of a Python "virtual machine" while in Java "virtual machine" is used all the time.
13 Answers
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What is a Python egg?
I'm new to Python and am just trying to understand how its packages work. Presumably "eggs" are some sort of packaging mechanism, but what would be a quick overview of what role they play and may be some information on why they're useful and how to create them?
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