关于将项目从一个文件移到另一个文件的问题 [英] newbe question about removing items from one file to another file
问题描述
def simplecsdtoorc（filename）：
file = open（filename，" r"）
alllines = file.read_until（"< / CsInstruments>" ;）
pattern1 = re.compile（"< /"）
orcfilename = filename [-3：] +" orc"
for line in alllines：
if if not pattern1
print>> orcfilename，line
我很漂亮确定我的代码并不接近我想要的。我需要能够
跳过html，如命令从< definedto< undefinedand to key on
另一个单词加入< / CsInstrumentsto结束例程
我也在看se 2.2 beta但是没有看到任何简单的方法来使用它
这个或者那个问题搜索并替换我可能的地方只需添加
它作为一个菜单项而不用担心它。
感谢提前任何帮助
听起来你需要使用html解析器，请在
文档中查看....
< Er ********* @ msn.com写信息
新闻：11 ****************** ****@i3g2000cwc.googlegro ups.com ...
def simplecsdtoorc（filename）：
file = open（filename， " r"）
alllines = file.read_until（"< / CsInstruments>"）
pattern1 = re.compile（"< /" ）
orcfilename = filename [-3：] +" orc"
for line in alllines：
if if not pattern1
print>> orcfilename，line
我很确定我的代码并不接近我想要的。我需要能够
跳过html，如命令从< definedto< undefinedand to key on
另一个单词加入< / CsInstrumentsto结束例程
我也在看se 2.2 beta但是没有看到任何简单的方法来使用它
这个或者那个问题搜索并替换我可能的地方只需添加
它作为一个菜单项而不用担心它。
感谢提前任何帮助
PetDragon写道：
听起来你需要使用html解析器，检查一下在
文件中....
< Er ********* @ msn.comwrote in message
news：11 ********************** @ i3g2000cwc.googlegro ups.com ...
def simplecsdtoorc（filename）：
file = open（filename，" r"）
alllines = file.read_until（"< / CsInstr uments>"）
pattern1 = re.compile（"< /"）
orcfilename = filename [-3：] +" orc"
for line in alllines：
if if not pattern1
print>> orcfilename，line
我很确定我的代码并不接近我想要的。我需要能够
跳过html，如命令从< definedto< undefinedand to key on
另一个单词加入< / CsInstrumentsto结束例程
我也在看se 2.2 beta但是没有看到任何简单的方法来使用它
这个或者那个问题搜索并替换我可能的地方只需添加
它作为一个菜单项而不用担心它。
感谢提前任何帮助
我会稍微调查一下因为那样的html就像......也许
一些例子可以引导我在很多方面正确的方向..
http://www.dexrow.com
Er ******** *@msn.com 写道：
def simplecsdtoorc（filename）：
file = open（filename，" r" ; ）
alllines = file.read_until（"< / CsInstruments>"）
pattern1 = re.compile（"< /"）
orcfilename = filename [-3：] +" orc"
for line in alllines：
if if not pattern1
print>> orcfilename，line
我很确定我的代码并不接近我想要的。我需要能够
跳过html，如命令从< definedto< undefinedand to key on
另一个单词加入< / CsInstrumentsto结束例程
我也在看se 2.2 beta但是没有看到任何简单的方法来使用它
这个或者那个问题搜索并替换我可能的地方只需添加
它作为一个菜单项而不用担心它。
感谢提前任何帮助
如果您正在处理html或类似html的文件，请查看
beautifulsoup。我有理由在前几天使用它而男人是否有用
有用！
同时，您发布的代码有一些小问题：
1）open（）默认为''r''，你可以在调用open（）时将其保留为
读取文件。
2）''file''是一个内置类型（它是由
open（）返回的文件对象的类型）所以你不应该'不要将它用作变量名。
3）文件对象没有read_until（）方法。你可以说
类似于：
f = open（文件名）
lines = []
for the line in f：
lines.append（line）
如果''< / CsInstruments>''排成一行：
break
4）filename [-3：]将为你提供文件名中的最后3个字符。我猜你想要除了最后3个字符之外的所有字符，那个文件名是[： - 3]，
但是请看os.path.splitext （）函数，以及os.path中的其他
函数：
http://docs.python.org/lib/module-os.path.html
5） re.compile（）返回的正则表达式对象将始终
评估为True，因此您要将数据上的search（）方法调用为
搜索：
如果不是pattern1.search（行）：
但是，6）使用re作为简单的模式< /"是有点矫枉过正了。只需
使用''in''或字符串的find（）方法：
if"< /"不符合：
或：
pos = line.find（"< /"）
if pos == -1：
print>> orcfilename，line
else：
print>> orcfilename， line [：pos]
7）print>文件用法需要一个文件（或类文件对象，
任何带有write（）方法的东西，我认为）不是字符串。你需要像这样使用
：
orcfile = open（orcfilename，''w''）
＃。 ..
打印> orcfile，行
8）如果你有一个行列表，你可以使用writelines（）
一次性写入文件的方法：
open（orcfilename，''w''）。writelines（lines）
当然使用
find（）从上一行中删除不需要的数据，如上所示。
我希望这有帮助。
查看文件对象上的文档：
http://docs.python.org/lib/bltin-file-objects.html ，但就像我说的那样，
如果你正在交易使用html或类似html的文件，请务必查看
beautifulsoup。另外，还有用于解析XML
的elementtree包也可以在这里提供帮助。
~Simon
def simplecsdtoorc(filename):
file = open(filename,"r")
alllines = file.read_until("</CsInstruments>")
pattern1 = re.compile("</")
orcfilename = filename[-3:] + "orc"
for line in alllines:
if not pattern1
print >>orcfilename, line
I am pretty sure my code isn''t close to what I want. I need to be able
to skip html like commands from <definedto <undefinedand to key on
another word in adition to </CsInstrumentsto end the routine
I was also looking at se 2.2 beta but didn''t see any easy way to use it
for this or for that matter search and replace where I could just add
it as a menu item and not worry about it.
thanks for any help in advance
Sounds like you need to use html parser, check it out in the
documentation....
<Er*********@msn.comwrote in message
news:11**********************@i3g2000cwc.googlegro ups.com...def simplecsdtoorc(filename):
file = open(filename,"r")
alllines = file.read_until("</CsInstruments>")
pattern1 = re.compile("</")
orcfilename = filename[-3:] + "orc"
for line in alllines:
if not pattern1
print >>orcfilename, line
I am pretty sure my code isn''t close to what I want. I need to be able
to skip html like commands from <definedto <undefinedand to key on
another word in adition to </CsInstrumentsto end the routine
I was also looking at se 2.2 beta but didn''t see any easy way to use it
for this or for that matter search and replace where I could just add
it as a menu item and not worry about it.
thanks for any help in advance
PetDragon wrote:Sounds like you need to use html parser, check it out in the
documentation....
<Er*********@msn.comwrote in message
news:11**********************@i3g2000cwc.googlegro ups.com...def simplecsdtoorc(filename):
file = open(filename,"r")
alllines = file.read_until("</CsInstruments>")
pattern1 = re.compile("</")
orcfilename = filename[-3:] + "orc"
for line in alllines:
if not pattern1
print >>orcfilename, line
I am pretty sure my code isn''t close to what I want. I need to be able
to skip html like commands from <definedto <undefinedand to key on
another word in adition to </CsInstrumentsto end the routine
I was also looking at se 2.2 beta but didn''t see any easy way to use it
for this or for that matter search and replace where I could just add
it as a menu item and not worry about it.
thanks for any help in advance
I will look into that a little bit since that is so html like... maybe
some of the examples can lead me in the right direction on alot of it..
http://www.dexrow.com
Er*********@msn.com wrote:def simplecsdtoorc(filename):
file = open(filename,"r")
alllines = file.read_until("</CsInstruments>")
pattern1 = re.compile("</")
orcfilename = filename[-3:] + "orc"
for line in alllines:
if not pattern1
print >>orcfilename, line
I am pretty sure my code isn''t close to what I want. I need to be able
to skip html like commands from <definedto <undefinedand to key on
another word in adition to </CsInstrumentsto end the routine
I was also looking at se 2.2 beta but didn''t see any easy way to use it
for this or for that matter search and replace where I could just add
it as a menu item and not worry about it.
thanks for any help in advanceIf you''re dealing with html or html-like files, do check out
beautifulsoup. I had reason to use it the other day and man is it ever
useful!
Meantime, there are a few minor points about the code you posted:
1) open() defaults to ''r'', you can leave it out when you call open() to
read a file.
2) ''file'' is a builtin type (it''s the type of file objects returned by
open()) so you shouldn''t use it as a variable name.
3) file objects don''t have a read_until() method. You could say
something like:
f = open(filename)
lines = []
for line in f:
lines.append(line)
if ''</CsInstruments>'' in line:
break
4) filename[-3:] will give you the last 3 chars in filename. I''m
guessing that you want all but the last 3 chars, that''s filename[:-3],
but see the os.path.splitext() function, and indeed the other
functions in os.path too:
http://docs.python.org/lib/module-os.path.html
5) the regular expression objects returned by re.compile() will always
evaluate True, so you want to call their search() method on the data to
search:
if not pattern1.search(line):
But, 6) using re for a pattern as simple as "</" is way overkill. Just
use ''in'' or the find() method of strings:
if "</" not in line:
or:
pos = line.find("</")
if pos == -1:
print >>orcfilename, line
else:
print >>orcfilename, line[:pos]
7) the "print >file" usage requires a file (or file-like object,
anything with a write() method I think) not a string. You need to use
it like this:
orcfile = open(orcfilename, ''w'')
#...
print >orcfile, line
8) If you have a list of lines anyway, you can use the writelines()
method of files to write them in one go:
open(orcfilename, ''w'').writelines(lines)
of course stripping out your unwanted data from that last line using
find() as shown above.
I hope this helps.
Check out the docs on file objects:
http://docs.python.org/lib/bltin-file-objects.html, but like I said,
if you''re dealing with html or html-like files, be sure to check out
beautifulsoup. Also, there''s the elementtree package for parsing XML
that could help here too.
~Simon
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