大约有 4,400 项符合查询结果（耗时：0.0244秒） [XML]
error: command 'gcc' failed with exit status 1 while installing eventlet
...ntos 7) Use the below command to install Python Development Package
Python 2.7
sudo yum install python-dev
Python 3.4
sudo yum install python34-devel
If the issue is still not resolved then try installing the below packages -
sudo yum install python-devel
sudo yum install openssl-devel
sudo yum...
List attributes of an object
...
In case anyone is wondering, this works on Python 2.7 as well
– Ben Mordecai
Jan 25 '13 at 19:33
8
...
How do I use brew installed Python as the default Python?
...(after using fink and macport) on Mac OS X 10.6.2. I have installed python 2.7 with
19 Answers
...
How to format a floating number to fixed width in Python
...
For Pythons prior to 2.7: ("%0.4f" % x).rjust(10)
– Steven Rumbalski
Jan 16 '12 at 21:26
23
...
Finding sum of elements in Swift array
... +) }
}
let numbers = [1,2,3]
numbers.sum() // 6
let doubles = [1.5, 2.7, 3.0]
doubles.sum() // 7.2
To sum a property of a custom object we can extend Sequence to take a keypath with a generic value that conforms to AdditiveArithmetic as parameter:
extension Sequence {
func sum<T: ...
ImportError: No module named matplotlib.pyplot
...uestion states: The environment is: Mac OS X 10.8.4 64bit built-in python 2.7
– Lanting
Aug 11 '17 at 8:14
...
Removing numbers from string [closed]
...
In Python 2.7 and above, you don't need the brackets around the list comprehension. You can leave them out and it becomes a generator expression.
– Kirk Strauser
Oct 12 '12 at 3:38
...
How to convert a scala.List to a java.util.List?
... first have to convert the Scala List into a mutable collection.
On Scala 2.7:
import scala.collection.jcl.Conversions.unconvertList
import scala.collection.jcl.ArrayList
unconvertList(new ArrayList ++ List(1,2,3))
From Scala 2.8 onwards:
import scala.collection.JavaConversions._
import scala.c...
ImportError: No module named site on Windows
...ime. I downloaded the following installer from the Python website:
Python 2.7.1 Windows Installer (Windows binary -- does not include source) . I then ran the installer, selected 'All Users' and all was fine. I installed Python into the default location:
...
How to filter a dictionary according to an arbitrary condition function?
...
Nowadays, in Python 2.7 and up, you can use a dict comprehension:
{k: v for k, v in points.iteritems() if v[0] < 5 and v[1] < 5}
And in Python 3:
{k: v for k, v in points.items() if v[0] < 5 and v[1] < 5}
...