为什么我的Python类不可调用？

• Z时代
• 2024-01-10
• 分类：问答

我试图用我在Java中学到的相同方式编写OO Python代码，这可能是我要去南方的地方。我有一个主要脚本和一个其他人写的我修改过的类。我在主脚本中调用这个类，但是我使用的每一种技术我都得不到[class name]。为什么我的Python类不可调用？

下面是最近的尝试。这是主要剧本。为了安全起见，已删除变量directory.pairs。

import yaml 
import pysftp 
import FingerprintKey 
with open('config/config.yaml') as settings: 
    cfg = yaml.load(settings) 
host = cfg['host'] 
username = cfg['username'] 
password = cfg['password'] 
serverkey = cfg['fingerPrint'] 
x = FingerprintKey(serverkey) 
options = pysftp.CnOpts() 
options.hostkeys.clear() 
options.hostkeys.add('www.example.com', u'ecdsa-sha2-nistp384', x) 
with pysftp.Connection(host, username=username, password=password, cnopts=options) as sftp: 
    #for source, destination in directoryPairs.items(): 
     #sftp.get_d(source, destination, preserve_mtime=True) 
     #if sftp.exists(source): 
      #files = sftp.listdir(source) 
      #for f in files: 
       #sftp.remove(os.path.join(source, f)) 
    sftp.close() 

下面是类FingerprintKey.py

import hashlib as hl 
def trim_fingerprint(fingerprint): 
    if fingerprint.startswith('ecdsa-sha2-nistp384 384 '): 
     return fingerprint[len('ecdsa-sha2-nistp384 384 '):] 
    return fingerprint 
def clean_fingerprint(fingerprint): 
    return trim_fingerprint(fingerprint).replace(':', '') 
class FingerprintKey: 
    def __init__(self, fingerprint): 
     self.fingerprint = clean_fingerprint(fingerprint) 
    def compare(self, other): 
     if callable(getattr(other, "get_fingerprint", None)): 
      return other.get_fingerprint() == self.fingerprint 
     elif clean_fingerprint(other) == self.get_fingerprint(): 
      return True 
     elif hl.md5(other).digest().encode('hex') == self.fingerprint: 
      return True 
     else: 
      return False 
    def __cmp__(self, other): 
     return self.compare(other) 
    def __contains__(self, other): 
     return self.compare(other) 
    def __eq__(self, other): 
     return self.compare(other) 
    def __ne__(self, other): 
     return not self.compare(other) 
    def get_fingerprint(self): 
     return self.fingerprint 
    def get_name(self): 
     return u'ecdsa-sha2-nistp384' 
    def asbytes(self): 
     # Note: This returns itself. 
     # That way when comparisons are done to asbytes return value, 
     # this class can handle the comparison. 
     return self 

这些文件的两者都是在同一个目录。

回答：

import AuthOnFingerPrint 
options.hostkeys.add('www.example.com', u'ecdsa-sha2-nistp384 384 ', AuthOnFingerPrint.FingerprintKey(serverkey)) 

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