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Pythonista external Data saves ?
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Hello guys,
short question:
Is it possible to save a.txt
or.sql
file on an external Drive like a NAS ? -
@DavinE sure, but how will depend on which protocol it supports: ftp, sftp, smb...
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@cvp It's a Synology NAS it can all of them you called...
can i search here for Python smb examples that have nothing to do with Pythonista ?
like this:
A simple example of opening a file using urllib and pysmb in Python 3 import urllib from smb.SMBHandler import SMBHandler opener = urllib.request.build_opener(SMBHandler) fh = opener.open('smb://host/share/file.txt') data = fh.read() fh.close()
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@DavinE I use this every day
# -*- coding: utf-8 -*- # based on https://github.com/humberry/smb-example/blob/master/smb-test.py # smb+nmb from https://github.com/miketeo/pysmb/tree/master/python3 # pyasn1 from https://github.com/etingof/pyasn1 from io import BytesIO from smb.SMBConnection import SMBConnection from smb import smb_structs from nmb.NetBIOS import NetBIOS import os import sys from socket import gethostname from io import StringIO class SMB_client(): def __init__(self,username=None,password=None,smb_name=None,print_errors=True): self.username = username self.password = password self.smb_name = smb_name self.print_errors = print_errors self.smb_ip = None self.conn = None self.service_name = None self.my_name = None self.error = None self.tree = [] def getBIOSName(self, remote_smb_ip, timeout=5): # unused if dynamic IP # ip -> smb name try: self.error = None bios = NetBIOS() srv_name = bios.queryIPForName(remote_smb_ip, timeout=timeout) return srv_name[0] except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) return None def getIP(self): # smb name -> ip try: self.error = None bios = NetBIOS() ip = bios.queryName(self.smb_name) return ip[0] except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) return None def connect(self): try: self.error = None self.my_name = gethostname() # iDevice name self.smb_ip = self.getIP() smb_structs.SUPPORT_SMB2 = True self.conn = SMBConnection(self.username, self.password, self.my_name, self.smb_name, use_ntlm_v2 = True) self.conn.connect(self.smb_ip, 139) #139=NetBIOS / 445=TCP if self.conn: shares = self.conn.listShares() for share in shares: if share.type == 0: # 0 = DISK_TREE self.service_name = share.name except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) def close(self): try: self.error = None self.conn.close() except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) def getRemoteDir(self, path, pattern): try: self.error = None files = self.conn.listPath(self.service_name, path, pattern=pattern) return files except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) return None def getRemoteTree(self,path=''): try: self.tree = [] self.error = None if path == '': w = '' else: w = path+'/' files = self.getRemoteDir(path, '*') if files: for file in files: if file.filename[0] == '.': continue self.tree.append({'name':w+file.filename, 'isdir':file.isDirectory, 'size':file.file_size}) if file.isDirectory: self.getRemoteTree(path=w+file.filename) return self.tree except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) return None def download(self, path, filename,buffersize=None,callback=None, local_path=None): try: self.error = None #print('Download = ' + path + filename) attr = self.conn.getAttributes(self.service_name, path+filename) #print('Size = %.1f kB' % (attr.file_size / 1024.0)) #print('start download') file_obj = BytesIO() if local_path: fw = open(local_path+filename, 'wb') else: fw = open(filename, 'wb') offset = 0 transmit =0 while True: if not buffersize: file_attributes, filesize = self.conn.retrieveFile(self.service_name, path+filename, file_obj) else: file_attributes, filesize = self.conn.retrieveFileFromOffset(self.service_name, path+filename, file_obj,offset=offset,max_length=buffersize) if callback: transmit = transmit + filesize callback(transmit) file_obj.seek(offset) for line in file_obj: fw.write(line) offset = offset + filesize if (not buffersize) or (filesize == 0): break fw.close() #print('download finished') except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) def upload(self, path, filename,buffersize=None,callback=None, local_path=None): try: self.error = None #print('Upload = ' + path + filename) #print('Size = %.1f kB' % (os.path.getsize(filename) / 1024.0)) #print('start upload') if local_path: file_obj = open(local_path+filename, 'rb') else: file_obj = open(filename, 'rb') offset = 0 while True: if not buffersize: filesize = self.conn.storeFile(self.service_name, path+filename, file_obj) break else: buffer_obj = file_obj.read(buffersize) if buffer_obj: buffer_fileobj = BytesIO() buffer_fileobj.write(buffer_obj) buffer_fileobj.seek(0) offset_new = self.conn.storeFileFromOffset(self.service_name, path+filename, buffer_fileobj, offset=offset, truncate=False) #return the file position where the next byte will be written. offset = offset_new if callback: callback(offset) else: break file_obj.close() #print('upload finished') except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) def delete_remote_file(self,path, filename): try: self.error = None self.conn.deleteFiles(self.service_name, path+filename) #print('Remotefile ' + path + filename + ' deleted') except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) def createRemoteDir(self, path): try: self.error = None self.conn.createDirectory(self.service_name, path) except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) def removeRemoteDir(self,path): try: self.error = None self.conn.deleteDirectory(self.service_name, path) except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e) def renameRemoteFileOrDir(self,old_path, new_path): try: self.error = None self.conn.rename(self.service_name, old_path, new_path) except Exception as e: if self.print_errors: print('Error on line {}'.format(sys.exc_info()[-1].tb_lineno), type(e).__name__, e) else: self.error = 'Error on line {}'.format(sys.exc_info()[-1].tb_lineno) + str(type(e).__name__) + str(e)
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@cvp Thanks
I have a look on this :)EDIT:
i always get this error...:SMB connection not authenticated
my password... username are correct...