Hello All
Thanks a lot Eric. I think I have some module missing but I cannot figure out what it is. I get the following. Any idea. This started hapening after I reinstalled matplotlib.
File "/Users/Kennel/Pythoncodes/coolingmodel.py", line 6, in <module>
import matplotlib
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/__init__.py", line 129, in <module>
from rcsetup import defaultParams, validate_backend, validate_toolbar
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/rcsetup.py", line 19, in <module>
from matplotlib.colors import is_color_like
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/colors.py", line 54, in <module>
import matplotlib.cbook as cbook
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/cbook.py", line 10, in <module>
import numpy.ma as ma
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/ma/__init__.py", line 47, in <module>
import extras
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/ma/extras.py", line 45, in <module>
from numpy.lib.index_tricks import AxisConcatenator
ImportError: cannot import name AxisConcatenator
The first few lines of my codes are:
from math import *
import exceptions
import pmag
import matplotlib
matplotlib.use("TkAgg")
import numpy as np
import matplotlib.pyplot as plt
Thanks a lot for all your help.
Mitra
···
On Nov 1, 2009, at 11:32 PM, Eric Firing wrote:
R. Mitra wrote:
Hi Eric
from math import *
import matplotlib
matplotlib.use("TkAgg")
from pylab import *
This is very basic I know. The above are the modules I am using. Is plt a separate module? Thanks.
With your method above, you don't need the "plt." part. "from pylab import *" is discouraged, however, except for quick interactive use. For scripts, it is generally considered better practice to use
import matplotlib
matplotlib.use("tkagg")
import numpy as np
import matplotlib.pyplot as plt
pyplot is the plot-related part of the pylab namespace; or to put it another way, pylab is pyplot plus numpy.
See http://matplotlib.sourceforge.net/faq/usage_faq.html
Eric
RM
On Nov 1, 2009, at 7:26 PM, Eric Firing wrote:
R. Mitra wrote:
Hi
I am having problems with contourf(). Suppose I have two 10X30 arrays X,Y and a corresponding Z value array. How do I make the upper left to be the origin? I cannot use contour (Z,origin='upper') because the axis values gets messed up.
It sounds like maybe you want to reverse the y-axis. Try something like plt.gca().invert_yaxis() after your call to contourf.
Eric
R. Mitra wrote:
Hello All
Thanks a lot Eric. I think I have some module missing but I cannot figure out what it is. I get the following. Any idea. This started hapening after I reinstalled matplotlib.
This is a numpy installation or version problem--notice that at the bottom of the traceback it is something from numpy that is not being found. Installation of numpy and mpl on OSX seems to be subject to all sorts of complications, and I don't use OSX, so I will have to leave this for someone else on the list.
Eric
···
File "/Users/Kennel/Pythoncodes/coolingmodel.py", line 6, in <module>
import matplotlib
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/__init__.py", line 129, in <module>
from rcsetup import defaultParams, validate_backend, validate_toolbar
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/rcsetup.py", line 19, in <module>
from matplotlib.colors import is_color_like
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/colors.py", line 54, in <module>
import matplotlib.cbook as cbook
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/matplotlib/cbook.py", line 10, in <module>
import numpy.ma as ma
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/ma/__init__.py", line 47, in <module>
import extras
File "/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/numpy/ma/extras.py", line 45, in <module>
from numpy.lib.index_tricks import AxisConcatenator
ImportError: cannot import name AxisConcatenator
The first few lines of my codes are:
from math import *
import exceptions
import pmag
import matplotlib
matplotlib.use("TkAgg")
import numpy as np
import matplotlib.pyplot as plt
Thanks a lot for all your help.
Mitra
On Nov 1, 2009, at 11:32 PM, Eric Firing wrote:
R. Mitra wrote:
Hi Eric
from math import *
import matplotlib
matplotlib.use("TkAgg")
from pylab import *
This is very basic I know. The above are the modules I am using. Is plt a separate module? Thanks.
With your method above, you don't need the "plt." part. "from pylab import *" is discouraged, however, except for quick interactive use. For scripts, it is generally considered better practice to use
import matplotlib
matplotlib.use("tkagg")
import numpy as np
import matplotlib.pyplot as plt
pyplot is the plot-related part of the pylab namespace; or to put it another way, pylab is pyplot plus numpy.
See http://matplotlib.sourceforge.net/faq/usage_faq.html
Eric
RM
On Nov 1, 2009, at 7:26 PM, Eric Firing wrote:
R. Mitra wrote:
Hi
I am having problems with contourf(). Suppose I have two 10X30 arrays X,Y and a corresponding Z value array. How do I make the upper left to be the origin? I cannot use contour (Z,origin='upper') because the axis values gets messed up.
It sounds like maybe you want to reverse the y-axis. Try something like plt.gca().invert_yaxis() after your call to contourf.
Eric