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| import codecs
import os
######################################################################
# File and Directory Library
######################################################################
def filePeek(f):
pos = f.tell()
line = f.readline()
f.seek(pos)
return line
def fileExists(file_path):
return os.path.exists(file_path)
def fileToString(file):
f = codecs.open(file, "r", "utf-8")
text = f.read()
f.close()
return text
def stringToFile(file,data):
f = codecs.open(file, "w", "utf-8")
f.write(data)
f.close()
def fileToBinary(file):
f = open(file, "rb")
data = f.read()
f.close()
return data;
def binaryToFile(file,data):
f = open(file, "wb")
f.write(data)
f.close()
def searchFile(dirname, recurse=False, extensions=None):
list = []
filenames = os.listdir(dirname)
for filename in filenames:
full_filename = os.path.join(dirname, filename)
if os.path.isdir(full_filename) and recurse == True:
list += searchFile(full_filename, recurse=recurse, extensions=extensions)
if os.path.isfile(full_filename):
ext = os.path.splitext(filename)[1]
if extensions is None or ext in extensions:
list.append(full_filename)
return list
def walkDir(dirname,extensions):
list = []
for (path, dirs, files) in os.walk(dirname):
print( path, dirs, files )
for filename in files:
ext = os.path.splitext(filename)[-1]
if ext in extensions:
list.append(os.path.join(path, filename))
return list
######################################################################
# base64 Library
######################################################################
import base64
def fileToBase64(filepath):
fp = open(filepath, "rb")
data = fp.read()
fp.close()
return base64.b64encode(data).decode('utf-8')
def stringToBase64(s):
return base64.b64encode(s.encode('utf-8'))
def base64ToString(b):
return base64.b64decode(b).decode('utf-8')
######################################################################
# JSON Library
######################################################################
import json
def pythonToJson(s):
return json.dumps(s, indent=4) #return str
def jsonToPython(s):
return json.loads(s) #return dict
######################################################################
# ZIP Library
######################################################################
import zipfile
def checkZip(filename):
return zipfile.is_zipfile(filename)
class pyzip():
def __init__(self,filename,create=None):
if create is None:
if filename is not None and zipfile.is_zipfile(filename) == True:
self.zf = zipfile.ZipFile(filename)
else:
self.zf = zipfile.ZipFile(filename, mode='w')
def close(self):
self.zf.close()
def namelist(self):
return self.zf.namelist()
def infolist(self,filename):
return self.zf.infolist()
def extract(self,inname,outfile):
data = self.zf.read(inname)
binaryToFile(outfile,data)
def add(self,filename):
self.zf.write(filename)
def dump(self):
for info in self.zf.infolist():
print( "%20s: %s" % ('name', info.filename) )
print( "%20s: %s" % ('org_size', info.file_size) )
print( "%20s: %s" % ('cmp_size', info.compress_size) )
print( "%20s: %s" % ('modified', info.date_time) )
print( "Total: %d" % (len(self.zf.infolist())))
######################################################################
# Test Code
######################################################################
def pythonToJsonTest():
customer = {
'id': 152352,
'name': 'alice',
'history': [
{'date': '2015-03-11', 'item': 'iPhone'},
{'date': '2016-02-23', 'item': 'Monitor'},
]
}
jsonString = pythonToJson(customer)
print(jsonString)
print(type(jsonString)) # class str
def jsonToPythonTest():
jsonString = '{"name": "alice", "id": 152352, "history": [{"date": "2015-03-11", "item": "iPhone"}, {"date": "2016-02-23", "item": "Monitor"}]}'
dict = jsonToPython(jsonString)
print(dict['name'])
for h in dict['history']:
print(h['date'], h['item'])
def zipTest():
z = pyzip('D:/Temp/a.zip')
z.dump()
z.extract('pyshell_demo.py','D:/Temp/pyshell_demo.py_zipout')
z2 = pyzip('D:/Temp/b.zip', create=True)
z2.add('D:/Temp/aa.py');
z2.close()
######################################################################
# Main
######################################################################
if __name__ == "__main__":
#list = walkDir("D:/Temp", extensions= ['.py','.png'])
#print ( len(list), list)
#print(fileToBase64("D:/Temp/line.png"))
#pythonToJsonTest()
#jsonToPythonTest()
zipTest()
|
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