我得到以下错误:
TypeError: POST data should be bytes, an iterable of bytes, or a file object. It cannot be of type str.
打下面的电话时
import urllib.request, urllib.parse, urllib.error, urllib.request,
urllib.error, urllib.parse
import json
chemcalcURL = 'http://www.chemcalc.org/chemcalc/em'
# Define a molecular formula string
mfRange = 'C0-100H0-100N0-10O0-10'
# target mass
mass = 300
# Define the parameters and send them to Chemcalc
# other options (mass tolerance, unsaturation, etc.
params = {'mfRange': mfRange,'monoisotopicMass': mass}
response = urllib.request.urlopen(chemcalcURL, urllib.parse.urlencode(params))
# Read the output and convert it from JSON into a Python dictionary
jsondata = response.read()
data = json.loads(jsondata)
print(data)
您必须将请求转换为涉及使用
bytes()
参数的字节:bytes()
必须采用一种编码,对于网站来说,这种编码几乎总是utf-8。你知道吗相关问题 更多 >
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