🌐 Mailman 3 August 2012 - Tutor - python.org

Wave module
by Alex Krycek Feb. 12, 2015

Feb. 12, 2015

Hello, I'm trying to join two .wav files with the wave module. But when I try to use wave.open(filename, "rb") I receive the following error: Traceback (most recent call last): File "<stdin>", line 1, in <module> File "F:\PortablePython1.0\lib\wave.py", line 483, in open return Wave_read(f) File "F:\PortablePython1.0\lib\wave.py", line 162, in __init__ self.initfp(f) File "F:\PortablePython1.0\lib\wave.py", line 143, in initfp self._read_fmt_chunk(chunk) File "F:\PortablePython1.0\lib\wave.py", line 264, in _read_fmt_chunk raise Error, 'unknown format: %r' % (wFormatTag,) wave.Error: unknown format: 85 I read somewhere that there are various wave formats, only some supported by Python. Is this true? If so, is there any way I can convert my wave files into a supported kind? Thanks!

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getUncPath(mappedDrive)
by Albert-Jan Roskam Jan. 30, 2014

Jan. 30, 2014

Hi, Is there a function that takes a file path with a mapped drive (z:\blah) and returns the associated UNC path (\\server\share\ding\dang\dong\blah)? I looked in os.path, but it doesn't seem to have this. The link below seems to be a solution (code in the bottom of the page), but I can't install win32com.client in the office :-( Is there any built-in function? http://stackoverflow.com/questions/2244767/python-check-network-map Thanks! Regards, Albert-Jan ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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unicode help
by Marilyn Davis Nov. 14, 2012

Nov. 14, 2012

Hi, I'm still on Python 2.6 and I'm trying to work some unicode handling. I've spent some hours on this snippet of code, trying to follow PEP 0263, since the error tells me to see it. I've tried other docs too and I am still clueless. The code works, except for the comment at the end. I would be very grateful for some help. #!/usr/bin/env python '''Unicode handling for 2.6. ''' class Currency(float): def __str__(self): value = self.__class__.symbol + float.__str__(self) return value class Yen(Currency): symbol = unichr(165) class Pound(Currency): symbol = unichr(163) def main(): y = Yen(100) print unicode(y) p = Pound(100) print unicode(p) main() """ ¥100.0 £100.0 """

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how to print array without adding newline
by vickistan Sept. 28, 2012

Sept. 28, 2012

Hello: I am trying to output an array to another program that takes an array as input, but the print statement adds a newline. If it were adding to each individual element, I could solve it easily, but it is adding one at the end of the array. Is there another way to print an array besides print arrayname If it were a string, I have a whole host of options, but I need it to be output as an array. Each element is a url. I call it from a browser, and it works except for the added newline. Here are the relevant lines: ================= /* code that connects to cloudfiles omitted */ containers = conn.get_all_containers() i=0 print "Content-type: text/html\n\n"; wholelist=containers[0].list_objects() random.shuffle(wholelist) newlist=[] try: del wholelist[int(sys.argv[1]):] while i < int(sys.argv[1]): newlist.append("http://example.com/"+wholelist[i].rstrip()) i = i+1 except IndexError, e: del newlist[5] print newlist ============== The output I am seeing is as follows: ['http://example.com/wet-longhaireddachshund.jpg', 'http://example.com/dachshund2.jpg', 'http://example.com/dachshundingrass.jpg'] Any tips on better coding practices are welcome, but please don't beat me up Thanks, vickistan -- View this message in context: http://python.6.n6.nabble.com/how-to-print-array-without-adding-newline-tp4… Sent from the Python - tutor mailing list archive at Nabble.com.

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group txt files by month
by questions anon Sept. 8, 2012

Sept. 8, 2012

I think what I am trying to do is relatively easy but can't get my head around how to do it. I have a list of txt files that contain daily rainfall for many years. I would like to produce a list that contains the year-month and the max, min and mean of rainfall for each month. My main question at this stage is how to group the files by each month for each year? They are set out like: r20110101.txt r20110102.txt r20110103.txt r20110104.txt r20110105.txt r20110106.txt r20110107.txt r20110108.txt r20110109.txt r20110110.txt r20110111.txt r20110112.txt r20110113.txt r20110114.txt r20110115.txt r20110116.txt r20110117.txt r20110118.txt and so on for each day for many years. so far I am able to open each file and calculate the max, min and mean for each file (see below) but not sure about grouping to monthly for each year. MainFolder=r"E:/Rainfalldata/" outputFolder=r"E:/test/" for (path, dirs, files) in os.walk(MainFolder): path=path+'/' for fname in files: if fname.endswith('.txt'): filename=path+fname f=np.genfromtxt(filename, skip_header=6) print f.max(), f.min(), f.mean() the ideal output would be something like: year-month max min mean 2010-12 100 0 50 2011-01 200 0 100 2011-02 50 0 25 any feedback will be greatly appreciated.

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How to get MAC address using Python at windows 7
by šãñ Sept. 7, 2012

Sept. 7, 2012

I need to find some way how i can get mac address of windows 7 in python.. -- ** [image: San's personal blog] <http://feeds.feedburner.com/SanLuthraBlog> * *

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Doing the same thing twice. Works first time but not the second.
by Matthew Love Sept. 6, 2012

Sept. 6, 2012

This error is confusing me. I am wondering if anyone can help me out. Using W7 64 Ultimate Using Python 3.1.1 This is the relevant part of the program. class Player(object): def __init__(self): print("Player created.") def inventory(self): self.inventory = ["torch"] return self.inventory player = Player() print("\nYour current inventory is", end= " ") print(player.inventory()) print("\nYour current inventory is", end= " ") print(player.inventory()) The first time the program prints the inventory correctly but when it does the exact same thing again it throws up an error. I can't think of a reason for why this happens. This is the error: Traceback (most recent call last): File "C:\Users\Matthew\Desktop\test.py", line 16, in <module> print(player.inventory()) TypeError: 'list' object is not callable Can anyone help me with this? I'd appreciate it.

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python 2.7.1
by john Sept. 6, 2012

Sept. 6, 2012

print "hello world" #this is just something to say >>> /Users/jonathan/Documents/hello.py File "<stdin>", line 1 /Users/jonathan/Documents/hello.py ^ SyntaxError: invalid syntax what am i doing wrong?

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Python
by Andrew Rosen Sept. 6, 2012

Sept. 6, 2012

I have a Windows Computer and I'm trying to make a shortcut on my desktop that will run a program, so I don't have to open up a New Window form Python Shell and use that to run the program. I can't figure out how to do it, can you help me?

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math description
by damjan kuzmic Sept. 6, 2012

Sept. 6, 2012

Hello, i would like to know how to write a formula that in excell looks like this: A / EXP(-LN(2) * t) -- greetings car kuzma

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