这个python源代码有什么问题？
import threading
import subprocess as sub
def ben(fil):
pr = sub.Popen(fil,stdout=sub.PIPE,stderr=sub.PIPE)
output, errors = pr.communicate()
print output
theapp = '''blender
blender-softwaregl'''.split()
print theapp
for u in theapp:
print u
tr = threading.Thread(target=ben, args=(u))
tr.daemon = True
tr.start()
错误是:
['blender', 'blender-softwaregl']
blender
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/local/lib/python2.7/threading.py", line 551, in __bootstrap_inner
self.run()
File "/usr/local/lib/python2.7/threading.py", line 504, in run
self.__target(*self.__args, **self.__kwargs)
TypeError: ben() takes exactly 1 argument (7 given)
blender-softwaregl
Exception in thread Thread-2:
Traceback …如何让pygame在Windows XP下使用Python 2.7？我想我需要编译它,但我不确定.
谢谢.
我想通过给出一个arg来创建一个返回元素数组位置的bash脚本.请参阅下面的代码,我使用
#!/bin/bash
args=("$@")
echo ${args[0]}
test_array=('AA' 'BB' 'CC' 'DD' 'EE')
echo $test_array
elem_array=${#test_array[@]}
for args in $test_array
do
echo
done
最后,我应该输出如下:
$script.sh DD
4
我尝试使用GL_TEXTURE_RECTANGLE_ARB使用数据原始纹理:
void Display::tex(){
GLubyte Texture[16] =
{
0,0,0,0, 0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF, 0,0,0,0
};
GLuint Nom;
glLoadIdentity();//load identity matrix
glTranslatef(0.0f,0.0f,-4.0f);//move forward 4 units
glEnable(GL_DEPTH_TEST); //Active le depth test
glDisable( GL_CULL_FACE );
glEnable (GL_TEXTURE_RECTANGLE_ARB);
glPixelStorei(GL_UNPACK_ROW_LENGTH, 2);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glGenTextures(1, &Nom);
glBindTexture(GL_TEXTURE_RECTANGLE_ARB, Nom);
glTexParameteri(GL_TEXTURE_RECTANGLE_ARB,
GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, 2, 2,
0, GL_BGRA_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, Texture);
angle = 0.01 * glutGet ( GLUT_ELAPSED_TIME );
glRotatef(angle,0,1,1);
glBegin(GL_QUADS); //Et c'est parti pour le cube !
glTexCoord2i(0,0);glVertex3i(-1,-1,-1);
glTexCoord2i(1,0);glVertex3i(+1,-1,-1);
glTexCoord2i(1,1);glVertex3i(+1,+1,-1);
glTexCoord2i(0,1);glVertex3i(-1,+1,-1);
//1 face
glTexCoord2i(0,0);glVertex3i(-1,-1,+1);
glTexCoord2i(1,0);glVertex3i(+1,-1,+1);
glTexCoord2i(1,1);glVertex3i(+1,+1,+1);
glTexCoord2i(0,1);glVertex3i(-1,+1,+1);
//2 faces …我用这个python脚本:
python2.6和2.7
for i in xrange(1000000):print i
python3.3
for i in range(1000000):print(i)
结果:
python 2.7
real 1m15.973s
user 0m3.392s
sys 0m6.384s
python 2.6
real 1m15.860s
user 0m3.064s
sys 0m6.296s
使用python 3.3我多次测试脚本,我收到了这种运行差异.
python 3.3
real 1m34.235s
user 0m10.668s
sys 0m8.988s
real 1m29.431s
user 0m10.304s
sys 0m9.512s
real 1m12.528s
user 0m10.568s
sys 0m9.004s
real 1m4.193s
user 0m9.688s
sys 0m8.812s
real 1m18.332s
user 0m9.728s
sys 0m9.132s
之后我再次尝试python 2.6,我得到了这个:
real 0m45.003s
user 0m3.056s
sys 0m5.956s
对2个python脚本3.3和2.7(或2.6)进行基准测试的最佳方法是什么.
我需要从列表中提取一些元素(在本例中为n)我还有另一个列表(列表)
n=['A','B','C','D','E']
o=['A','B','C','D','E','AS','sd','Z','R']
n.sort()
现在,如果我使用此代码:
for o in sorted(n):
代码运行'A','B','C','D','E'.
我需要运行for代码但只运行'AS','sd','Z','R'项目.
类似于:运行o列表中的项目的代码,而不包含n列表中的项目