Question

我安装了pySDL2 0.4.1：

下载源包，输入python setup.py install。然后我尝试将copypasted运行到PyDev eclipse“The Pong Game：Getting Started”教程代码示例中：

import os，sys

try:
    os.environ["PYSDL2_DLL_PATH"] = "/home/me/workspace/Pong/third-party"
    print(os.getenv("PYSDL2_DLL_PATH"))
    from sdl2 import events, SDL_QUIT
    import sdl2.ext as sdl2ext
except ImportError:
    import traceback
    traceback.print_exc()
    sys.exit(1)

def run():
    sdl2ext.init()
    window = sdl2ext.Window("The Pong Game", size=(800, 600))
    window.show()
    running = True
    while running:
        events = sdl2ext.get_events()
        for event in events:
            if event.type == SDL_QUIT:
                running = False
                break
        window.refresh()
    return 0

if __name__ == "__main__":
    sys.exit(run())

我收到以下错误：

Traceback (most recent call last):
  File "/home/me/workspace/Pong/Main.py", line 11, in <module>
    from sdl2 import *
  File "/usr/local/lib/python3.3/dist-packages/sdl2/__init__.py", line 2, in <module>
    from .dll import get_dll_file, _bind
  File "/usr/local/lib/python3.3/dist-packages/sdl2/dll.py", line 90, in <module>
    dll = _DLL("SDL2", ["SDL2", "SDL2-2.0"], os.getenv("PYSDL2_DLL_PATH"))
  File "/usr/local/lib/python3.3/dist-packages/sdl2/dll.py", line 51, in __init__
    raise RuntimeError("could not find any library for %s" % libinfo)
RuntimeError: could not find any library for SDL2

我通过Synaptic安装了Pypy和libSDL，并且在PyDev中没有添加外部库 - PythonPath。

我做错了什么？

Answer 1

似乎PySDL2找不到SDL2运行时库。它们可以在libsdl download page上找到（Linux除外）。

然后你应该通过设置PYSDL2_DLL_PATH来让PySDL2成为库的位置：

# Win32 platforms
set PYSDL2_DLL_PATH=C:\path\to\fancy_project\third_party

# Unix/Posix-alike environments - bourne shells
export PYSDL2_DLL_PATH=/path/to/fancy_project/third_party

# Unix/Posix-alike environments - C shells
setenv PYSDL2_DLL_PATH /path/to/fancy_project/third_party

或在python脚本中：

# Win32 Platform path
os.environ["PYSDL2_DLL_PATH"] = "C:\\path\\to\\fancy_project\\third_party"
# Unix/Posix-alike environments path
os.environ["PYSDL2_DLL_PATH"] = "/path/to/fancy_project/third_party"

这样，PySDL2将始终找到库文件（只要路径是正确的）！这对我来说似乎更容易。

使用SDL2快乐编码！

Answer 2

几乎解决了。 Ubuntu有SDL1.2，SDL的主要下载页面也是SDL1.2。需要输入以下命令安装源包：

mkdir /opt/sdl2
cd /opt/sdl2
hg clone http://hg.libsdl.org/SDL SDL
cd SDL
mkdir build && cd build
../configure
make
sudo make install

然后从下载SDL_image-2.x.x.tar.gz http://www.libsdl.org/tmp/SDL_image/

并输入：

../configure
make
sudo make install

最后输入：

ldconfig /usr/local/lib

现在唯一不起作用的是SDL_QUIT未被识别。

安装pySDL2后，SDL2的RuntimeError

2 个答案: