当接收到HTTP 200时脚本可以正常工作。但是，一旦出现异常，我就会收到错误消息。我知道该网站没有安装有效的SSL证书，并且我尝试过request.exceptions.RequestException来捕获任何内容，但仍然会引发错误。我还会不时出现诸如代理错误之类的异常，而requests.exceptions.RequestException不会捕获该异常。我也尝试过，在try：request.raise_for_status（）下，仍然抛出错误。代码如下：
def verify_ssl(proxy_info, target):
print('Attempting to verify SSL Cert on %s:443' % target)
if proxy_info == None:
response = requests.get('https://%s' % target)
if proxy_info != None:
response = requests.get('https://%s' % target, proxies=proxy_info)
try:
response
except requests.exceptions.SSLError as g:
print('SSL Verification Error %s' % g)
return ('Successfully Verified SSL Cert: HTTP 200 received.\n')
Debug抛出这个：
Traceback (most recent call last):
File "c:\Users\appleta\Desktop\ping.py", line 69, in <module>
ssl_result = verify_ssl(proxy_info, target)
File "c:\Users\appleta\Desktop\ping.py", line 37, in verify_ssl
response = requests.get('https://%s' % target)
File "C:\Python34\lib\site-packages\requests\api.py", line 72, in get
return request('get', url, params=params, **kwargs)
File "C:\Python34\lib\site-packages\requests\api.py", line 58, in request
return session.request(method=method, url=url, **kwargs)
File "C:\Python34\lib\site-packages\requests\sessions.py", line 512, in request
resp = self.send(prep, **send_kwargs)
File "C:\Python34\lib\site-packages\requests\sessions.py", line 622, in send
r = adapter.send(request, **kwargs)
File "C:\Python34\lib\site-packages\requests\adapters.py", line 511, in send
raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='blabla.com', port=443): Max retries exceeded with url: / (Caused by SSLError(SSLError(1, '[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:600)'),))
答案 0 :(得分：2)
在python中，表达式：
./ffprobe -v quiet -print_format json -show_format -show_streams testoutput.mp4不能从不产生异常。您必须将两个
./ffprobe -v quiet -print_format json -show_format -show_streams testoutput.mp4
{
"streams": [
{
"index": 0,
"codec_name": "h264",
"codec_long_name": "H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10",
"profile": "Main",
"codec_type": "video",
"codec_time_base": "1001/48000",
"codec_tag_string": "avc1",
"codec_tag": "0x31637661",
"width": 1280,
"height": 720,
"coded_width": 1280,
"coded_height": 720,
"has_b_frames": 0,
"sample_aspect_ratio": "1:1",
"display_aspect_ratio": "16:9",
"pix_fmt": "yuv420p",
"level": 40,
"chroma_location": "left",
"refs": 1,
"is_avc": "false",
"nal_length_size": "0",
"r_frame_rate": "24000/1001",
"avg_frame_rate": "24000/1001",
"time_base": "1/24000",
"start_pts": 984,
"start_time": "0.041000",
"duration_ts": 1201200,
"duration": "50.050000",
"bit_rate": "845035",
"bits_per_raw_sample": "8",
"nb_frames": "1199",
"disposition": {
"default": 1,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 0,
"timed_thumbnails": 0
},
"tags": {
"language": "und",
"handler_name": "VideoHandler"
}
},
{
"index": 1,
"codec_name": "aac",
"codec_long_name": "AAC (Advanced Audio Coding)",
"profile": "LC",
"codec_type": "audio",
"codec_time_base": "1/48000",
"codec_tag_string": "mp4a",
"codec_tag": "0x6134706d",
"sample_fmt": "fltp",
"sample_rate": "48000",
"channels": 2,
"channel_layout": "stereo",
"bits_per_sample": 0,
"r_frame_rate": "0/0",
"avg_frame_rate": "0/0",
"time_base": "1/48000",
"start_pts": 0,
"start_time": "0.000000",
"duration_ts": 2401488,
"duration": "50.031000",
"bit_rate": "129153",
"max_bit_rate": "129153",
"nb_frames": "2346",
"disposition": {
"default": 1,
"dub": 0,
"original": 0,
"comment": 0,
"lyrics": 0,
"karaoke": 0,
"forced": 0,
"hearing_impaired": 0,
"visual_impaired": 0,
"clean_effects": 0,
"attached_pic": 0,
"timed_thumbnails": 0
},
"tags": {
"language": "ger",
"handler_name": "SoundHandler"
}
}
],
"format": {
"filename": "Leonmusssterben20171080p.mp4",
"nb_streams": 2,
"nb_programs": 0,
"format_name": "mov,mp4,m4a,3gp,3g2,mj2",
"format_long_name": "QuickTime / MOV",
"start_time": "0.000000",
"duration": "50.031000",
"size": "6116472",
"bit_rate": "978029",
"probe_score": 100,
"tags": {
"major_brand": "isom",
"minor_version": "512",
"compatible_brands": "isomiso2avc1mp41",
"encoder": "Lavf58.17.100"
}
}
}
调用都放在response
块中：
get也：请注意，您总是返回字符串try，因为即使出现错误，您也只打印错误消息，然后恢复执行。您可能想在def verify_ssl(proxy_info, target):
print('Attempting to verify SSL Cert on %s:443' % target)
try:
if proxy_info is None:
response = requests.get('https://%s' % target)
else:
response = requests.get('https://%s' % target, proxies=proxy_info)
except requests.exceptions.SSLError as g:
print('SSL Verification Error %s' % g)
return 'Got SSL error'
return 'Successfully Verified SSL Cert: HTTP 200 received.\n'
块中返回不同的内容。