How convert string '1e7' to an integer?
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Newsgroups: comp.lang.python
From:
Peng Yu <pengyu... @gmail.com> Date: Sat, 7 Nov 2009 19:17:09 -0600
Local: Sun 8 Nov 2009 01:17
Subject: How convert string '1e7' to an integer?
It seems that int() does not convert '1e7'. I'm wondering what
>>> int('1e7')
Traceback (most recent call last):
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From:
Mensanator <mensana... @aol.com> Date: Sat, 7 Nov 2009 17:41:03 -0800 (PST)
Local: Sun 8 Nov 2009 01:41
Subject: Re: How convert string '1e7' to an integer?
On Nov 7, 7:17 pm, Peng Yu <pengyu... @gmail.com> wrote:
> It seems that int() does not convert '1e7'.
Because 'e' isn't a valid character in base 10.
> I'm wondering what
> function to use to convert '1e7' to an integer?
> >>> int('1e7')
> Traceback (most recent call last):
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From:
Mick Krippendorf <mad.m... @gmx.de> Date: Sun, 08 Nov 2009 02:42:21 +0100
Local: Sun 8 Nov 2009 01:42
Subject: Re: How convert string '1e7' to an integer?
Peng Yu wrote:
It seems it does, though:
>>> int('1e7', base=16)
487 Mick.
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From:
MRAB <pyt... @mrabarnett.plus.com> Date: Sun, 08 Nov 2009 01:45:57 +0000
Local: Sun 8 Nov 2009 01:45
Subject: Re: How convert string '1e7' to an integer?
Peng Yu wrote:
> It seems that int() does not convert '1e7'. I'm wondering what
> function to use to convert '1e7' to an integer?
>>>> int('1e7')
>>> int(float('1e7'))
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From:
Ben Finney <ben+pyt... @benfinney.id.au> Date: Sun, 08 Nov 2009 12:49:48 +1100
Local: Sun 8 Nov 2009 01:49
Subject: Re: How convert string '1e7' to an integer?
Mick Krippendorf <mad.m
... @gmx.de> writes:
> Peng Yu wrote:
> > It seems that int() does not convert '1e7'.
> It seems it does, though:
> >>> int('1e7', base=16)
--
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From:
Gary Herron <gher... @islandtraining.com> Date: Sat, 07 Nov 2009 17:50:53 -0800
Local: Sun 8 Nov 2009 01:50
Subject: Re: How convert string '1e7' to an integer?
Mensanator wrote:
> On Nov 7, 7:17 pm, Peng Yu <pengyu
... @gmail.com> wrote:
>> It seems that int() does not convert '1e7'.
> Because 'e' isn't a valid character in base 10.
>>> int(float('1e7'))
That has a problem though, if you surpass the ability of a float:
>>> int(float('1e20'))
Gary Herron
>> I'm wondering what
>>>>> int('1e7')
>>>> int(1e7)
> 10000000
>> Traceback (most recent call last):
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From:
Benjamin Kaplan <benjamin.kap... @case.edu> Date: Sat, 7 Nov 2009 20:52:37 -0500
Local: Sun 8 Nov 2009 01:52
Subject: Re: How convert string '1e7' to an integer?
On Sat, Nov 7, 2009 at 8:17 PM, Peng Yu <pengyu
... @gmail.com> wrote:
> It seems that int() does not convert '1e7'. I'm wondering what
> function to use to convert '1e7' to an integer?
>>>> int('1e7')
>>> 1e7
10000000.0 So to convert '1e7' to a number, you need to use float('1e7') which
>>> int(float('1e7'))
10000000
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From:
Christian Heimes <li... @cheimes.de> Date: Sun, 08 Nov 2009 02:55:08 +0100
Local: Sun 8 Nov 2009 01:55
Subject: Re: How convert string '1e7' to an integer?
Peng Yu wrote:
1e7 is a way to express a float in science and math. Try float("1e7") Christian
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From:
Tim Chase <python.l... @tim.thechases.com> Date: Sat, 07 Nov 2009 20:05:22 -0600
Local: Sun 8 Nov 2009 02:05
Subject: Re: How convert string '1e7' to an integer?
Mick Krippendorf wrote:
> Peng Yu wrote:
>> It seems that int() does not convert '1e7'.
> It seems it does, though:
>>>> int('1e7', base=16)
>>> print '\n'.join("Base %i: %i" % (base, int('1e7',
I feel so dirty interpreting numbers in convenient ways...like an
-tkc
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From:
Roel Schroeven <rschroev_nospam... @fastmail.fm> Date: Sun, 08 Nov 2009 10:37:34 +0100
Local: Sun 8 Nov 2009 09:37
Subject: Re: How convert string '1e7' to an integer?
Gary Herron schreef:
> Mensanator wrote:
>> On Nov 7, 7:17 pm, Peng Yu <pengyu
... @gmail.com> wrote:
>>> It seems that int() does not convert '1e7'.
>> Because 'e' isn't a valid character in base 10.
> But 1e7 is a valid float, so this works:
> >>> int(float('1e7'))
> That has a problem though, if you surpass the ability of a float:
> >>> int(float('1e20'))
>>> import decimal
1000000000000000000000000000000L --
Roel Schroeven
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From:
Thomas <thom1... @gmail.com> Date: Sun, 8 Nov 2009 04:40:29 -0800 (PST)
Local: Sun 8 Nov 2009 12:40
Subject: Re: How convert string '1e7' to an integer?
Just a curiosity, why does Python do this?
>>> l = [(base, int('1e7', base=base)) for base in range(15,37)]
[(15, 442), (16, 487), (17, 534), (18, 583), (19, 634), (20, 687), >>> l = ([base, int('1e7', base=base)] for base in range(15,37))
<generator object at 0x027803A0>
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From:
Mick Krippendorf <mad.m... @gmx.de> Date: Sun, 08 Nov 2009 14:39:05 +0100
Local: Sun 8 Nov 2009 13:39
Subject: Re: How convert string '1e7' to an integer?
Thomas wrote:
> Just a curiosity, why does Python do this?
>>>> [(base, int('1e7', base=base)) for base in range(15,37)]
Mick.
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