運行Python文件

Question

我沒有在Python編程的經驗，但我可以運行python文件沒有任何人幫我請 這裏是文件內容

>>>>>>>>>>>>>> 
#!/usr/local/bin/python 

""" 
Based on: http://wxpsvg.googlecode.com/svn/trunk/svg/pathdata.py 
According to that project, this file is licensed under the LGPL 
""" 
try: 
    from pyparsing import (ParserElement, Literal, Word, CaselessLiteral, 
     Optional, Combine, Forward, ZeroOrMore, nums, oneOf, Group, ParseException, OneOrMore) 
except ImportError: 
    import sys 
    sys.exit("pyparsing is required") 


#ParserElement.enablePackrat() 

def Command(char): 
    """ Case insensitive but case preserving""" 
    return CaselessPreservingLiteral(char) 

def Arguments(token): 
    return Group(token) 


class CaselessPreservingLiteral(CaselessLiteral): 
    """ Like CaselessLiteral, but returns the match as found 
     instead of as defined. 
    """ 
    def __init__(self, matchString): 
     super(CaselessPreservingLiteral,self).__init__(matchString.upper()) 
     self.name = "'%s'" % matchString 
     self.errmsg = "Expected " + self.name 
     self.myException.msg = self.errmsg 

    def parseImpl(self, instring, loc, doActions=True): 
     test = instring[ loc:loc+self.matchLen ] 
     if test.upper() == self.match: 
      return loc+self.matchLen, test 
     #~ raise ParseException(instring, loc, self.errmsg) 
     exc = self.myException 
     exc.loc = loc 
     exc.pstr = instring 
     raise exc 

def Sequence(token): 
    """ A sequence of the token""" 
    return OneOrMore(token+maybeComma) 

digit_sequence = Word(nums) 

sign = oneOf("+ -") 

def convertToFloat(s, loc, toks): 
    try: 
     return float(toks[0]) 
    except: 
     raise ParseException(loc, "invalid float format %s"%toks[0]) 

exponent = CaselessLiteral("e")+Optional(sign)+Word(nums) 

#note that almost all these fields are optional, 
#and this can match almost anything. We rely on Pythons built-in 
#float() function to clear out invalid values - loosely matching like this 
#speeds up parsing quite a lot 
floatingPointConstant = Combine(
    Optional(sign) + 
    Optional(Word(nums)) + 
    Optional(Literal(".") + Optional(Word(nums)))+ 
    Optional(exponent) 
) 

floatingPointConstant.setParseAction(convertToFloat) 

number = floatingPointConstant 

#same as FP constant but don't allow a - sign 
nonnegativeNumber = Combine(
    Optional(Word(nums)) + 
    Optional(Literal(".") + Optional(Word(nums)))+ 
    Optional(exponent) 
) 
nonnegativeNumber.setParseAction(convertToFloat) 

coordinate = number 

#comma or whitespace can seperate values all over the place in SVG 
maybeComma = Optional(Literal(',')).suppress() 

coordinateSequence = Sequence(coordinate) 

coordinatePair = (coordinate + maybeComma + coordinate).setParseAction(lambda t: tuple(t)) 
coordinatePairSequence = Sequence(coordinatePair) 

coordinatePairPair = coordinatePair + maybeComma + coordinatePair 
coordinatePairPairSequence = Sequence(Group(coordinatePairPair)) 

coordinatePairTriple = coordinatePair + maybeComma + coordinatePair + maybeComma + coordinatePair 
coordinatePairTripleSequence = Sequence(Group(coordinatePairTriple)) 

#commands 
lineTo = Group(Command("L") + Arguments(coordinatePairSequence)) 
curve = Group(Command("C") + Arguments(coordinatePairSequence)) 

moveTo = Group(Command("M") + Arguments(coordinatePairSequence)) 

closePath = Group(Command("Z")).setParseAction(lambda t: ('Z', (None,))) 

flag = oneOf("1 0").setParseAction(lambda t: bool(int((t[0])))) 

arcRadius = (
    nonnegativeNumber + maybeComma + #rx 
    nonnegativeNumber #ry 
).setParseAction(lambda t: tuple(t)) 

arcFlags = (flag + maybeComma + flag).setParseAction(lambda t: tuple(t)) 

ellipticalArcArgument = Group(
    arcRadius + maybeComma + #rx, ry 
    number + maybeComma +#rotation 
    arcFlags + #large-arc-flag, sweep-flag 
    coordinatePair #(x,y) 
) 

ellipticalArc = Group(Command("A") + Arguments(Sequence(ellipticalArcArgument))) 

smoothQuadraticBezierCurveto = Group(Command("T") + Arguments(coordinatePairSequence)) 

quadraticBezierCurveto = Group(Command("Q") + Arguments(coordinatePairPairSequence)) 

smoothCurve = Group(Command("S") + Arguments(coordinatePairPairSequence)) 

#curve = Group(Command("C") + Arguments(coordinatePairTripleSequence)) 

horizontalLine = Group(Command("H") + Arguments(coordinateSequence)) 
verticalLine = Group(Command("V") + Arguments(coordinateSequence)) 

drawToCommand = (
    lineTo | moveTo | closePath | ellipticalArc | smoothQuadraticBezierCurveto | 
    quadraticBezierCurveto | smoothCurve | curve | horizontalLine | verticalLine 
    ) 

#~ number.debug = True 
moveToDrawToCommands = moveTo + ZeroOrMore(drawToCommand) 

path = ZeroOrMore(moveToDrawToCommands) 
path.keepTabs = True 

def get_points(d): 
    commands = path.parseString(d) 
    points = [] 
    currentset = None 
    for command in commands: 
     if command[0] == 'M': 
      currentset = [] 
      points.append(currentset) 
      currentset.append(command[1][-1]) 
     elif command[0] == 'L': 
      currentset.extend(command[1]) 
     elif command[0] == 'C': 
      currentset.extend(command[1]) 
    return points 

if __name__ == "__main__": 
    print path.parseString("M 242.96145,653.59282 L 244.83646,650.1553 L 247.02397,649.8428 L 247.33647,650.62405 L 245.30521,653.59282 L 242.96145,653.59282 z M 252.80525,649.99905 L 258.74278,652.49906 L 260.77404,652.18656 L 262.33654,648.43654 L 261.71154,645.15528 L 257.64902,644.68653 L 253.74275,646.40528 L 252.80525,649.99905 z M 282.49289,659.6866 L 286.08665,664.99912 L 288.43041,664.68662 L 289.52417,664.21787 L 290.93042,665.46787 L 294.52419,665.31162 L 295.4617,663.90537 L 292.64918,662.18661 L 290.77417,658.59284 L 288.74291,655.15533 L 283.11789,657.96784 L 282.49289,659.6866 z M 302.02423,668.28039 L 303.27423,666.40538 L 307.8055,667.34288 L 308.43051,666.87413 L 314.36803,667.49913 L 314.05553,668.74914 L 311.55552,670.15539 L 307.33675,669.84289 L 302.02423,668.28039 z M 307.1805,673.28041 L 309.05551,677.03043 L 312.02427,675.93667 L 312.33677,674.37416 L 310.77427,672.3429 L 307.1805,672.0304 L 307.1805,673.28041 z M 313.89928,672.18665 L 316.08679,669.37414 L 320.61806,671.7179 L 324.83683,672.81166 L 329.0556,675.46792 L 329.0556,677.34293 L 325.61809,679.06169 L 320.93056,679.99919 L 318.5868,678.59293 L 313.89928,672.18665 z M 329.99311,687.18672 L 331.55561,685.93672 L 334.83688,687.49923 L 342.18066,690.93674 L 345.46193,692.968 L 347.02443,695.31176 L 348.89944,699.53053 L 352.80571,702.03054 L 352.49321,703.28055 L 348.74319,706.40556 L 344.68067,707.81182 L 343.27442,707.18682 L 340.30565,708.90557 L 337.96189,712.03059 L 335.77438,714.8431 L 334.05562,714.68685 L 330.61811,712.18684 L 330.30561,707.81182 L 330.93061,705.46806 L 329.3681,699.99928 L 327.33684,698.28052 L 327.18059,695.78051 L 329.3681,694.84301 L 331.39936,691.87425 L 331.86811,690.93674 L 330.30561,689.21798 L 329.99311,687.18672 z ") 
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 

Answer 1

首先要做的事情是：在你的shell中輸入python。它應該啓動python。如果沒有，你需要安裝支持運行時系統的python解釋器。我確信你的平臺有簡單的教程：「安裝python [你的操作系統名稱]」到Google。

如果python開始一個python解釋，隨時與CTRL退出它 - d。

將which python鍵入到您的shell中。它應該看起來像這樣：/usr/bin/python或/usr/local/bin/python。把它返回到你的文件的第一行。 （更換/usr/local/bin/python如果是別的東西保持#!，這是該操作系統是如何知道這是一個解釋文件。）

並確保此文件設置爲可執行：chmod 755 <filename>或chmod 533 <filename>或任何方式將是最合適在你的環境中。

最後，您可以運行該文件：./<filename>或/path/to/filename。

Answer 2

安裝Python。

在命令行鍵入：

python <your_file_name> 

來執行它。

Answer 3

下載python在http://www.python.org/download/。然後，您可以從程序列表中打開IDLE並粘貼代碼。然後可以選擇運行代碼。這是最簡單的方法，但最好的方法就是打開您的CLI（acessories> CMD在Windows上，在OS X實用工具/終端），然後cd到你的目錄一拉「CD桌面」，然後運行「蟒蛇myfile.py」。

而且從文件的容貌，你需要的庫，在安裝http://pyparsing.wikispaces.com/。