[Tutor] Help on RE

[Japhy Bartlett]

it's a bug in your regex - you want something like "-?\d+"

- japhy

On Sat, Jan 22, 2011 at 7:38 PM, tee chwee liong <tcl76 at hotmail.com> wrote:
> hi,
>
> i have a set of data and using re to extract it into array. however i only
> get positive value, how to extract the whole value including the -ve sign?
> For eg:
>
> Platform: PC
> Tempt : 25
> TAP0 :0
> TAP1 :1
> +++++++++++++++++++++++++++++++++++++++++++++
> Port Chnl Lane EyVt EyHt
> +++++++++++++++++++++++++++++++++++++++++++++
> 0  1  1  75  55
> 0  1  2  10 35
> 0  1  3  25 35
> 0  1  4  35 25
> 0  1  5  10 -1
> +++++++++++++++++++++++++++++++++++++++++++++
> Time: 20s
>
> When i run my code, i get 1 instead of -1 in the last line. here is my code.
> pls advise. i'm using Python 2.5 and Win XP. tq
> ##code###
> import re
> file = open("C:/Python25/myscript/plot/sampledata.txt", "r")
> x1 = []
> y1 = []
> y2 = []
> for line in file:
>     numbers = re.findall("\d+", line)
>     print numbers
>
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