content: """
  This is a procedural interface to the matplotlib object-oriented
  plotting library.
  
  The following plotting commands are provided; the majority have
  Matlab(TM) analogs and similar argument.
  
  _Plotting commands
    acorr     - plot the autocorrelation function
    annotate  - annotate something in the figure
    arrow     - add an arrow to the axes
    axes      - Create a new axes
    axhline   - draw a horizontal line across axes
    axvline   - draw a vertical line across axes
    axhspan   - draw a horizontal bar across axes
    axvspan   - draw a vertical bar across axes
    axis      - Set or return the current axis limits
    bar       - make a bar chart
    barh      - a horizontal bar chart
    broken_barh - a set of horizontal bars with gaps
    box       - set the axes frame on/off state
    boxplot   - make a box and whisker plot
    cla       - clear current axes
    clabel    - label a contour plot
    clf       - clear a figure window
    clim      - adjust the color limits of the current image
    close     - close a figure window
    colorbar  - add a colorbar to the current figure
    cohere    - make a plot of coherence
    contour   - make a contour plot
    contourf  - make a filled contour plot
    csd       - make a plot of cross spectral density
    delaxes   - delete an axes from the current figure
    draw      - Force a redraw of the current figure
    errorbar  - make an errorbar graph
    figlegend - make legend on the figure rather than the axes
    figimage  - make a figure image
    figtext   - add text in figure coords
    figure   - create or change active figure
    fill     - make filled polygons
    findobj  - recursively find all objects matching some criteria
    gca      - return the current axes
    gcf      - return the current figure
    gci      - get the current image, or None
    getp      - get a handle graphics property
    grid     - set whether gridding is on
    hist     - make a histogram
    hold     - set the axes hold state
    ioff     - turn interaction mode off
    ion      - turn interaction mode on
    isinteractive - return True if interaction mode is on
    imread   - load image file into array
    imshow   - plot image data
    ishold   - return the hold state of the current axes
    legend   - make an axes legend
    loglog   - a log log plot
    matshow  - display a matrix in a new figure preserving aspect
    pcolor   - make a pseudocolor plot
    pcolormesh - make a pseudocolor plot using a quadrilateral mesh
    pie      - make a pie chart
    plot     - make a line plot
    plot_date - plot dates
    plotfile  - plot column data from an ASCII tab/space/comma delimited file
    pie      - pie charts
    polar    - make a polar plot on a PolarAxes
    psd      - make a plot of power spectral density
    quiver   - make a direction field (arrows) plot
    rc       - control the default params
    rgrids   - customize the radial grids and labels for polar
    savefig  - save the current figure
    scatter  - make a scatter plot
    setp      - set a handle graphics property
    semilogx - log x axis
    semilogy - log y axis
    show     - show the figures
    specgram - a spectrogram plot
    spy      - plot sparsity pattern using markers or image
    stem     - make a stem plot
    subplot  - make a subplot (numrows, numcols, axesnum)
    subplots_adjust - change the params controlling the subplot positions of current figure
    subplot_tool - launch the subplot configuration tool
    suptitle   - add a figure title
    table    - add a table to the plot
    text     - add some text at location x,y to the current axes
    thetagrids - customize the radial theta grids and labels for polar
    title    - add a title to the current axes
    xcorr   - plot the autocorrelation function of x and y
    xlim     - set/get the xlimits
    ylim     - set/get the ylimits
    xticks   - set/get the xticks
    yticks   - set/get the yticks
    xlabel   - add an xlabel to the current axes
    ylabel   - add a ylabel to the current axes
  
    autumn - set the default colormap to autumn
    bone   - set the default colormap to bone
    cool   - set the default colormap to cool
    copper - set the default colormap to copper
    flag   - set the default colormap to flag
    gray   - set the default colormap to gray
    hot    - set the default colormap to hot
    hsv    - set the default colormap to hsv
    jet    - set the default colormap to jet
    pink   - set the default colormap to pink
    prism  - set the default colormap to prism
    spring - set the default colormap to spring
    summer - set the default colormap to summer
    winter - set the default colormap to winter
    spectral - set the default colormap to spectral
  
  _Event handling
  
    connect - register an event handler
    disconnect - remove a connected event handler
  
  _Matrix commands
  
    cumprod   - the cumulative product along a dimension
    cumsum    - the cumulative sum along a dimension
    detrend   - remove the mean or besdt fit line from an array
    diag      - the k-th diagonal of matrix
    diff      - the n-th differnce of an array
    eig       - the eigenvalues and eigen vectors of v
    eye       - a matrix where the k-th diagonal is ones, else zero
    find      - return the indices where a condition is nonzero
    fliplr    - flip the rows of a matrix up/down
    flipud    - flip the columns of a matrix left/right
    linspace  - a linear spaced vector of N values from min to max inclusive
    logspace  - a log spaced vector of N values from min to max inclusive
    meshgrid  - repeat x and y to make regular matrices
    ones      - an array of ones
    rand      - an array from the uniform distribution [0,1]
    randn     - an array from the normal distribution
    rot90     - rotate matrix k*90 degress counterclockwise
    squeeze   - squeeze an array removing any dimensions of length 1
    tri       - a triangular matrix
    tril      - a lower triangular matrix
    triu      - an upper triangular matrix
    vander    - the Vandermonde matrix of vector x
    svd       - singular value decomposition
    zeros     - a matrix of zeros
  
  _Probability
  
    levypdf   - The levy probability density function from the char. func.
    normpdf   - The Gaussian probability density function
    rand      - random numbers from the uniform distribution
    randn     - random numbers from the normal distribution
  
  _Statistics
  
    corrcoef  - correlation coefficient
    cov       - covariance matrix
    amax       - the maximum along dimension m
    mean      - the mean along dimension m
    median    - the median along dimension m
    amin       - the minimum along dimension m
    norm      - the norm of vector x
    prod      - the product along dimension m
    ptp       - the max-min along dimension m
    std       - the standard deviation along dimension m
    asum       - the sum along dimension m
  
  _Time series analysis
  
    bartlett  - M-point Bartlett window
    blackman  - M-point Blackman window
    cohere    - the coherence using average periodiogram
    csd       - the cross spectral density using average periodiogram
    fft       - the fast Fourier transform of vector x
    hamming   - M-point Hamming window
    hanning   - M-point Hanning window
    hist      - compute the histogram of x
    kaiser    - M length Kaiser window
    psd       - the power spectral density using average periodiogram
    sinc      - the sinc function of array x
  
  _Dates
  
    date2num  - convert python datetimes to numeric representation
    drange    - create an array of numbers for date plots
    num2date  - convert numeric type (float days since 0001) to datetime
  
  _Other
  
    angle     - the angle of a complex array
    griddata - interpolate irregularly distributed data to a regular grid
    load     - load ASCII data into array
    polyfit   - fit x, y to an n-th order polynomial
    polyval   - evaluate an n-th order polynomial
    roots     - the roots of the polynomial coefficients in p
    save      - save an array to an ASCII file
    trapz     - trapezoidal integration
  
  __end
  
  """
  import sys, warnings
  
  from cbook import flatten, is_string_like, exception_to_str, popd, \
       silent_list, iterable, dedent
  
  import numpy as np
  from numpy import ma
  
  from matplotlib import mpl  # pulls in most modules
  
  from matplotlib.dates import date2num, num2date,\
          datestr2num, strpdate2num, drange,\
          epoch2num, num2epoch, mx2num,\
          DateFormatter, IndexDateFormatter, DateLocator,\
          RRuleLocator, YearLocator, MonthLocator, WeekdayLocator,\
          DayLocator, HourLocator, MinuteLocator, SecondLocator,\
          rrule, MO, TU, WE, TH, FR, SA, SU, YEARLY, MONTHLY,\
          WEEKLY, DAILY, HOURLY, MINUTELY, SECONDLY, relativedelta
  import matplotlib.dates
  
  # bring all the  symbols in so folks can import them from
  # pylab in one fell swoop
  
  from matplotlib.mlab import  window_hanning, window_none,\
          conv, detrend, detrend_mean, detrend_none, detrend_linear,\
          polyfit, polyval, entropy, normpdf, griddata,\
          levypdf, find, trapz, prepca, rem, norm, orth, rank,\
          sqrtm, prctile, center_matrix, rk4, exp_safe, amap,\
          sum_flat, mean_flat, rms_flat, l1norm, l2norm, norm, frange,\
          diagonal_matrix, base_repr, binary_repr, log2, ispower2,\
          bivariate_normal, load, save
  
  from matplotlib.mlab import stineman_interp, slopes, \
      stineman_interp, inside_poly, poly_below, poly_between, \
      is_closed_polygon, path_length, distances_along_curve, vector_lengths
  
  from numpy import *
  from numpy.fft import *
  from numpy.random import *
  from numpy.linalg import *
  
  from matplotlib.mlab import window_hanning, window_none, conv, detrend, demean, \
       detrend_mean, detrend_none, detrend_linear, entropy, normpdf, levypdf, \
       find, longest_contiguous_ones, longest_ones, prepca, prctile, prctile_rank, \
       center_matrix, rk4, bivariate_normal, get_xyz_where, get_sparse_matrix, dist, \
       dist_point_to_segment, segments_intersect, fftsurr, liaupunov, movavg, \
       save, load, exp_safe, \
       amap, rms_flat, l1norm, l2norm, norm_flat, frange, diagonal_matrix, identity, \
       base_repr, binary_repr, log2, ispower2, fromfunction_kw, rem, norm, orth, rank, sqrtm,\
       mfuncC, approx_real, rec_append_field, rec_drop_fields, rec_join, csv2rec, rec2csv, isvector
  
  
  
  
  
  from matplotlib.pyplot import *
  
  # provide the recommended module abbrevs in the pylab namespace
  import matplotlib.pyplot as plt
  import numpy as np
  