为什么会提示‘file’object has no attribute readLines'_百度知道
为什么会提示‘file’object has no attribute readLines'
) while True，就读取到文件结束为止）.readline()
print line，readline()每次读取一行python中readline()是用来读取文本文件中的一行,
line=f，每行作为一个元素，保存在一个列表(list)变量中；readlines()读取整个文件所有行，读取到文件结束为止，返回结果是一个字符串;myfile&quot。 f=open(&quot；read(size)从文件当前位置起读取size个字节（如果文件结束，read都是用来读取文件内容，如果size是负值或省略，当前位置移到下一行。 readline和readlines
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出门在外也不愁为什么会提示‘file’object has no attribute readLines'_百度知道
为什么会提示‘file’object has no attribute readLines'
提问者采纳
)while True，当前位置移到下一行。readline和readlines,
else；readlines()读取整个文件所有行。f=open(&quot:
line=fpython中readline()是用来读取文本文件中的一行，保存在一个列表(list)变量中.readline()
if line，read都是用来读取文件内容，每行作为一个元素;myfile&quot:
print line，读取到文件结束为止，如果size是负值或省略，就读取到文件结束为止）；read(size)从文件当前位置起读取size个字节（如果文件结束，readline()每次读取一行，返回结果是一个字符串
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出门在外也不愁　　大家会发现，常见的解决方法都会需要对远程服务器必要的配置，如果远程服务器只有一两台还好说，如果有N台，还需要逐台进行配置，或者需要使用代码进行以上操作时，上面的办法就不太方便了。
　　使用paramiko可以很好的解决以上问题，比起前面的方法，它仅需要在本地上安装相应的软件（python以及PyCrypto），对远程服务器没有配置要求，对于连接多台服务器，进行复杂的连接操作特别有帮助。
　　安装paramiko有两个先决条件，python和另外一个名为PyCrypto的模块。
　　通常安装标准的python模块，只需要在模块的根目录下运行：
python setup.py build
python setup.py install
备注：安装前先检查是否安装gcc（yum -y install gcc）
2.1 PyCrypto安装
wget http://ftp.dlitz.net/pub/dlitz/crypto/pycrypto/pycrypto-2.6.tar.gz
tar -zxvf pycrypto-2.6.tar.gz
cd pycrypto-2.6/
python setup.py build && python setup.py install
　　测试：
python&& import Crypto
　　(编译时报错：error: command 'gcc' failed with exit status 1；这是因为缺少python-dev的软件包，所yum -y install python-devel)
2.2 paramiko安装
wget http://www.lag.net/paramiko/download/paramiko-1.7.7.1.tar.gz
tar xvzf paramiko-1.7.7.1.tar.gz
cd paramiko-1.7.7.1/
python setup.py build && python setup.py install
Crypto error: 'module' object has no attribute 'HAVE_DECL_MPZ_POWM_SEC'
　　测试：
python&& import paramiko
　　(Crypto error: 'module' object has no attribute 'HAVE_DECL_MPZ_POWM_SEC'
　　找到 /usr/lib/python2.7/site-packages/Crypto/Util/number.py
　　把if _fastmath is not None and not _fastmath.HAVE_DECL_MPZ_POWM_SEC:
　　注释了
　　#if _fastmath is not None and not _fastmath.HAVE_DECL_MPZ_POWM_SEC:
3.1 执行远程命令
#!/usr/bin/python
import paramiko
ssh = paramiko.SSHClient()
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
ssh.connect("某IP地址",22,"用户名", "口令")
stdin, stdout, stderr = ssh.exec_command("你的命令")
print stdout.readlines()
ssh.close()
3.2 上传文件到远程
#!/usr/bin/python
import paramiko
t = paramiko.Transport(("某IP地址",22))
t.connect(username = "用户名", password = "口令")
sftp = paramiko.SFTPClient.from_transport(t)
remotepath='/tmp/test.txt'
localpath='/tmp/test.txt'
sftp.put(localpath,remotepath)
3.3 从远程下载文件
#!/usr/bin/python
import paramiko
t = paramiko.Transport(("某IP地址",22))
t.connect(username = "用户名", password = "口令")
sftp = paramiko.SFTPClient.from_transport(t)
remotepath='/tmp/test.txt'
localpath='/tmp/test.txt'
sftp.get(remotepath, localpath)
阅读(...) 评论()Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. J it only takes a minute:
I have a class MyThread. In that I have a method sample. I am trying to run it from withing the same object context. Please have a look at the code:
class myThread (threading.Thread):
def __init__(self, threadID, name, counter, redisOpsObj):
threading.Thread.__init__(self)
self.threadID = threadID
self.name = name
self.counter = counter
self.redisOpsObj = redisOpsObj
def stop(self):
self.kill_received = True
def sample(self):
print "Hello"
def run(self):
time.sleep(0.1)
print "\n Starting " + self.name
self.sample()
Looks very simple ain't it. But when I run it I get this error
AttributeError: 'myThread' object has no attribute 'sample' Now I have that method, right there. So what's wrong? Please help
Edit: This is the stacktrace
Starting Thread-0
Starting Thread-1
Exception in thread Thread-0:
Traceback (most recent call last):
File "/usr/lib/python2.6/threading.py", line 525, in __bootstrap_inner
self.run()
File "./redisQueueProcessor.py", line 51, in run
self.sample()
AttributeError: 'myThread' object has no attribute 'sample'
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib/python2.6/threading.py", line 525, in __bootstrap_inner
self.run()
File "./redisQueueProcessor.py", line 51, in run
self.sample()
AttributeError: 'myThread' object has no attribute 'sample'
I am calling it like this
arThreads = []
maxThreads = 2;
for i in range( maxThreads ):
redisOpsObj = redisOps()
arThreads.append( myThread(i, "Thread-"+str(i), 10, redisOpsObj) )
Sorry I can't post redisOps class code. But I can assure you that it works just fine
1,859123370
Your indentation is goofed, and you've mixed tabs and spaces. Run the script with python -tt to verify.
397k49684864
These kind of bugs are common when Python multi-threading. What happens is that, on interpreter tear-down, the relevant module (myThread in this case) goes through a sort-of del myThread.
The call self.sample() is roughly equivalent to myThread.__dict__["sample"](self).
But if we're during the interpreter's tear-down sequence, then its own dictionary of known types might've already had myThread deleted, and now it's basically a NoneType - and has no 'sample' attribute.
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Stack Overflow works best with JavaScript enabled运行python脚本时一直提示xx object has no attribute xx_百度知道
运行python脚本时一直提示xx object has no attribute xx
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提问者采纳
ef setup(self):应该是def setUp(self):注意大小写然后还有个错误，webdriver没有定义
提问者评价
3Q，改成大写就OK了。
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其他1条回答
你没有导入webdriver的包from&appium&import&webdriver
这个有写的、。估计没有复制上去，
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