在jupyter笔记本中采取了以下步骤，试图让seaborn.pairplot()工作。来自/usr/local/lib/python2.7/site-packages/matplotlib/matplotlib/transforms.pyc的错误导致该功能停止工作。
以下是python库版本：
print(matplotlib.__version__, sns.__version__)
('1.5.1', '0.7.1')
读取虹膜数据集的csv
data = pandas.read_csv('iris.csv')
data_no_nans = data.dropna()
sns.pairplot(data_no_nans)
错误讯息：
ValueError Traceback (most recent call last)
<ipython-input-4-001343d0343b> in <module>()
----> 1 sns.pairplot(data)
/usr/local/lib/python2.7/site-packages/seaborn/linearmodels.pyc in pairplot(data, hue, hue_order, palette, vars, x_vars, y_vars, kind, diag_kind, markers, size, aspect, dropna, plot_kws, diag_kws, grid_kws)
1588 hue_order=hue_order, palette=palette,
1589 diag_sharey=diag_sharey,
-> 1590 size=size, aspect=aspect, dropna=dropna, **grid_kws)
1591
1592 # Add the markers here as PairGrid has figured out how many levels of the
/usr/local/lib/python2.7/site-packages/seaborn/axisgrid.pyc in __init__(self, data, hue, hue_order, palette, hue_kws, vars, x_vars, y_vars, diag_sharey, size, aspect, despine, dropna)
1253 if despine:
1254 utils.despine(fig=fig)
-> 1255 fig.tight_layout()
1256
1257 def map(self, func, **kwargs):
/usr/local/lib/python2.7/site-packages/matplotlib/figure.pyc in tight_layout(self, renderer, pad, h_pad, w_pad, rect)
1752 renderer,
1753 pad=pad, h_pad=h_pad, w_pad=w_pad,
-> 1754 rect=rect)
1755
1756 self.subplots_adjust(**kwargs)
/usr/local/lib/python2.7/site-packages/matplotlib/tight_layout.pyc in get_tight_layout_figure(fig, axes_list, subplotspec_list, renderer, pad, h_pad, w_pad, rect)
347 subplot_list=subplot_list,
348 ax_bbox_list=ax_bbox_list,
--> 349 pad=pad, h_pad=h_pad, w_pad=w_pad)
350
351 if rect is not None:
/usr/local/lib/python2.7/site-packages/matplotlib/tight_layout.pyc in auto_adjust_subplotpars(fig, renderer, nrows_ncols, num1num2_list, subplot_list, ax_bbox_list, pad, h_pad, w_pad, rect)
126 tight_bbox_raw = union([ax.get_tightbbox(renderer) for ax in subplots])
127 tight_bbox = TransformedBbox(tight_bbox_raw,
--> 128 fig.transFigure.inverted())
129
130 row1, col1 = divmod(num1, cols)
/usr/local/lib/python2.7/site-packages/matplotlib/matplotlib/transforms.pyc in __init__(self, bbox, transform, **kwargs)
1080 msg = ("'transform' must be an instance of"
1081 " 'matplotlib.transform.Transform'")
-> 1082 raise ValueError(msg)
1083 if transform.input_dims != 2 or transform.output_dims != 2:
1084 msg = "The input and output dimensions of 'transform' must be 2"
ValueError: 'transform' must be an instance of 'matplotlib.transform.Transform'
Regplot完美运作
sns.regplot(x="petal_length", y="petal_width", data=data)
修改
我怀疑它与matplotlib的字体管理器故障有关。我从〜/ .cache /删除了fontconfig和辣目录，并收到一条新的错误消息：AttributeError：＆＃39; module＆＃39;对象没有属性＆＃39;已锁定＆＃39;
AttributeError Traceback (most recent call last)
<ipython-input-3-001343d0343b> in <module>()
----> 1 sns.pairplot(data)
/usr/local/lib/python2.7/site-packages/seaborn/linearmodels.pyc in pairplot(data, hue, hue_order, palette, vars, x_vars, y_vars, kind, diag_kind, markers, size, aspect, dropna, plot_kws, diag_kws, grid_kws)
1588 hue_order=hue_order, palette=palette,
1589 diag_sharey=diag_sharey,
-> 1590 size=size, aspect=aspect, dropna=dropna, **grid_kws)
1591
1592 # Add the markers here as PairGrid has figured out how many levels of the
/usr/local/lib/python2.7/site-packages/seaborn/axisgrid.pyc in __init__(self, data, hue, hue_order, palette, hue_kws, vars, x_vars, y_vars, diag_sharey, size, aspect, despine, dropna)
1253 if despine:
1254 utils.despine(fig=fig)
-> 1255 fig.tight_layout()
1256
1257 def map(self, func, **kwargs):
/usr/local/lib/python2.7/site-packages/matplotlib/figure.pyc in tight_layout(self, renderer, pad, h_pad, w_pad, rect)
1737 """
1738
-> 1739 from .tight_layout import (get_renderer, get_tight_layout_figure,
1740 get_subplotspec_list)
1741
/usr/local/lib/python2.7/site-packages/matplotlib/tight_layout.py in <module>()
15 from matplotlib.transforms import TransformedBbox, Bbox
16
---> 17 from matplotlib.font_manager import FontProperties
18 rcParams = matplotlib.rcParams
19
/usr/local/lib/python2.7/site-packages/matplotlib/matplotlib/font_manager.py in <module>()
1448 verbose.report("Using fontManager instance from %s" % _fmcache)
1449 except:
-> 1450 _rebuild()
1451 else:
1452 _rebuild()
/usr/local/lib/python2.7/site-packages/matplotlib/matplotlib/font_manager.py in _rebuild()
1433
1434 if _fmcache:
-> 1435 with cbook.Locked(cachedir):
1436 json_dump(fontManager, _fmcache)
1437
AttributeError: 'module' object has no attribute 'Locked'
答案 0 :(得分：1)
所以我现在回答我自己的问题。
我通过使用Macports虚拟环境解决了这个问题
sudo port selfupdate
sudo port install python27
sudo port install py27-virtualenv
/opt/local/bin/virtualenv-2.7 $HOME/local/python/27
添加到.bash_profile：
alias py27="source $HOME/local/python/27/bin/activate"
在终端中运行以设置虚拟环境并使用pip安装所需的软件包。
py27
which pip
$HOME/local/python/27/bin/pip
pip install ipython etc
奇怪的是，家庭酿造装置出了问题，我想知道是否安装了任何冲突的包装。
不确定它是否相关，但这里是我的.bash_profile：
# some settings to prefer homebrew paths in case it exists:
if which -s brew ; then
PATH="/usr/local/bin:/usr/local/sbin:$PATH"
fi
# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
PATH="$HOME/bin:$PATH"
fi
这可能搞砸了。