Condider以下代码:
Warning: require(/Kurt/Website/appengine-php-wordpress-starter-project/wordpress/index.php): failed to open stream: No such file or directory in /home/kurt/Downloads/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/php/setup.php on line 147
Fatal error: require(): Failed opening required '/Kurt/Website/appengine-php-wordpress-starter-project/wordpress/index.php' (include_path='.:/Kurt/Website/appengine-php-wordpress-starter-project:/home/kurt/Downloads/google-cloud-sdk/platform/google_appengine/php/sdk') in /home/kurt/Downloads/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/php/setup.php on line 147
在带有numpy 1.7.1的python 2.7.5上,这会产生:
import numpy as np
a = np.array([[1,2,3], [4,5,6]])
try:
a[1,:] = (1,2,3,4)
print "Value OK"
except ValueError:
print "Value error"
在带有numpy 1.11.0的python 2.7.12上,这会产生:
Value OK
由于尺寸不匹配,我期待后者。这只是numpy 1.7.1中的一个错误,还是我不应该依赖于ValueError?
作为一个注释:它看起来像某种懒惰的评估问题。 numpy 1.7.1最终会引发错误,但只有当你稍后尝试访问数组时...有人可以解释发生了什么吗?