Errors retreiving spaceweather files using JB2008

[OrbitalMechanic]

I'm running PyAtmos ver. 1.2.4 under Python ver. 3.9.x under the Anaconda distribution on a Mac Pro (2019) that runs Mac OSX ver. 13.2.1 (Ventura). In running the following example:

from pyatmos import download_sw_jb2008,read_sw_jb2008
# Download or update the space weather file from https://sol.spacenvironment.net
swfile = download_sw_jb2008() 
# Read the space weather data
swdata = read_sw_jb2008(swfile) 

from pyatmos import jb2008
# Set a specific time and location
t = '2014-07-22 22:18:45' # time(UTC) 
lat,lon,alt = 25,102,600 # latitude, longitude in [degree], and altitude in [km]
jb08 = jb2008(t,(lat,lon,alt),data)
print(jb08.rho) # [kg/m^3]
print(jb08.T) # [K]

I get the following error messages.

================================================================================
Feb 18, 2023 at 04:53:42
~/Various_Python_Examples/JB2008_Example/JB2008_ex.py
--------------------------------------------------------------------------------
Downloading the Space Weather file 'SOLFSMY.TXT' from Space Environment Technologies(SET)
/Users/user/opt/anaconda3/lib/python3.9/site-packages/paramiko/transport.py:219: CryptographyDeprecationWarning: Blowfish has been deprecated
  "class": algorithms.Blowfish,
Traceback (most recent call last):
  File "/Users/user/opt/anaconda3/lib/python3.9/urllib/request.py", line 1346, in do_open
    h.request(req.get_method(), req.selector, req.data, headers,
  File "/Users/user/opt/anaconda3/lib/python3.9/http/client.py", line 1285, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/Users/user/opt/anaconda3/lib/python3.9/http/client.py", line 1331, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/Users/user/opt/anaconda3/lib/python3.9/http/client.py", line 1280, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/Users/user/opt/anaconda3/lib/python3.9/http/client.py", line 1040, in _send_output
    self.send(msg)
  File "/Users/user/opt/anaconda3/lib/python3.9/http/client.py", line 980, in send
    self.connect()
  File "/Users/user/opt/anaconda3/lib/python3.9/http/client.py", line 1454, in connect
    self.sock = self._context.wrap_socket(self.sock,
  File "/Users/user/opt/anaconda3/lib/python3.9/ssl.py", line 501, in wrap_socket
    return self.sslsocket_class._create(
  File "/Users/user/opt/anaconda3/lib/python3.9/ssl.py", line 1041, in _create
    self.do_handshake()
  File "/Users/user/opt/anaconda3/lib/python3.9/ssl.py", line 1310, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1129)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/user/Various_Python_Examples/JB2008_Example/JB2008_ex.py", line 5, in <module>
    swfile = download_sw_jb2008() 
  File "/Users/user/opt/anaconda3/lib/python3.9/site-packages/pyatmos/jb2008/spaceweather.py", line 42, in download_sw_jb2008
    wget_download(url1,swfile1,desc1)
  File "/Users/user/opt/anaconda3/lib/python3.9/site-packages/pyatmos/utils/try_download.py", line 17, in wget_download
    wget_out = wget.download(url,dir_file)
  File "/Users/user/opt/anaconda3/lib/python3.9/site-packages/wget.py", line 526, in download
    (tmpfile, headers) = ulib.urlretrieve(binurl, tmpfile, callback)
  File "/Users/user/opt/anaconda3/lib/python3.9/urllib/request.py", line 239, in urlretrieve
    with contextlib.closing(urlopen(url, data)) as fp:
  File "/Users/user/opt/anaconda3/lib/python3.9/urllib/request.py", line 214, in urlopen
    return opener.open(url, data, timeout)
  File "/Users/user/opt/anaconda3/lib/python3.9/urllib/request.py", line 517, in open
    response = self._open(req, data)
  File "/Users/user/opt/anaconda3/lib/python3.9/urllib/request.py", line 534, in _open
    result = self._call_chain(self.handle_open, protocol, protocol +
  File "/Users/user/opt/anaconda3/lib/python3.9/urllib/request.py", line 494, in _call_chain
    result = func(*args)
  File "/Users/user/opt/anaconda3/lib/python3.9/urllib/request.py", line 1389, in https_open
    return self.do_open(http.client.HTTPSConnection, req,
  File "/Users/user/opt/anaconda3/lib/python3.9/urllib/request.py", line 1349, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1129)>

The problem appears to be associated with wget_download thru download_sw_jb2008() .

Any suggestions?

Sam Dupree.

[MitchCraun]

I'm having a similar issue. Were you ever able to solve this?

[MorokotSakal]

Hi, I have the same issue.

This is how I solved it (thanks to ChatGPT)

Here are the steps to follow:

1. Install the certifi package:

pip install certifi

2. Update your SSL context to use the certifi certificates:
   You can modify your script to use the certifi certificates by adding the following code at the beginning of your script:

import ssl
import certifi
ssl._create_default_https_context = ssl._create_unverified_context

3. Re-run your script:
   python JB2008_ex.py

This should help resolve the SSL certificate verification error.