问题描述
我使用matplotlib已有一段时间了，没有任何问题.自从我需要交互式绘图功能(使用了 Tkaag)以来已经有一段时间了.从那以后，我几次更新了matplotlib.
I've been using matplotlib for some time without problems. It's been a while since i needed the interactive plot functions (for which Tkaag was used). Since then i updated matplotlib a few times.
我今天尝试使用它，但是它产生了一个错误.
I tried to use it today, but it spawned an error.
/usr/local/lib/python2.7/dist-packages/matplotlib/backends/tkagg.py in <module>()
----> 1 import _tkagg
2 import Tkinter as Tk
3
4 def blit(photoimage, aggimage, bbox=None, colormode=1):
5 tk = photoimage.tk
ImportError: No module named _tkagg
我尝试了一个不同的后端，添加了
I tried a different backend, added the
backend : GTKAgg
到 matplotlibrc.只是为了在其他模块上得到相同的错误.
to matplotlibrc. Just to get the same error for a different module.
ImportError: No module named _backend_gdk
当我在/usr/local/lib/python2.7/dist-packages/matplotlib/backends/中浏览后端时，我注意到所有需要的带下划线的模块都丢失了.
When I browsed for backends in /usr/local/lib/python2.7/dist-packages/matplotlib/backends/ i've noticed that all the required modules with underscore are missing.
alan@linux /usr/local/lib/python2.7/dist-packages/matplotlib/backends $ ls
backend_agg.py backend_macosx.py backend_template.pyc
backend_agg.pyc backend_macosx.pyc backend_tkagg.py
_backend_agg.so backend_mixed.py backend_tkagg.pyc
backend_cairo.py backend_mixed.pyc backend_wxagg.py
backend_cairo.pyc backend_pdf.py backend_wxagg.pyc
backend_cocoaagg.py backend_pdf.pyc backend_wx.py
backend_cocoaagg.pyc backend_ps.py backend_wx.pyc
backend_emf.py backend_ps.pyc __init__.py
backend_emf.pyc backend_qt4agg.py __init__.pyc
backend_fltkagg.py backend_qt4agg.pyc Matplotlib.nib
backend_fltkagg.pyc backend_qt4.py qt4_compat.py
backend_gdk.py backend_qt4.pyc qt4_compat.pyc
backend_gdk.pyc backend_qtagg.py qt4_editor
backend_gtkagg.py backend_qtagg.pyc tkagg.py
backend_gtkagg.pyc backend_qt.py tkagg.pyc
backend_gtkcairo.py backend_qt.pyc windowing.py
backend_gtkcairo.pyc backend_svg.py windowing.pyc
backend_gtk.py backend_svg.pyc
backend_gtk.pyc backend_template.py
我当前的matplotlib版本:
My current matplotlib version:
matplotlib - 1.1.1 - active development (/usr/local/lib/python2.7/dist-packages)
我尝试使用以下方法卸载并重新安装matplotlib:
I've tried uninstalled and reinstalling matplotlib with:
pip uninstall matplotlib
pip install matplotlib
一切顺利.
关于重新运行交互式绘图的设置提示?
Tips on setting on getting interactive plotting running again?
BUILDING MATPLOTLIB
matplotlib: 1.1.1
python: 2.7.3rc2 (default, Apr 22 2012, 22:35:38) [GCC
4.6.3]
platform: linux2
REQUIRED DEPENDENCIES
numpy: 1.6.2
freetype2: 14.1.8
OPTIONAL BACKEND DEPENDENCIES
libpng: 1.2.49
Tkinter: no
* Using default library and include directories for
* Tcl and Tk because a Tk window failed to open.
* You may need to define DISPLAY for Tk to work so
* that setup can determine where your libraries are
* located. Tkinter present, but header files are not
* found. You may need to install development
* packages.
pkg-config: looking for pygtk-2.0 gtk+-2.0
* Package pygtk-2.0 was not found in the pkg-config
* search path. Perhaps you should add the directory
* containing `pygtk-2.0.pc' to the PKG_CONFIG_PATH
* environment variable No package 'pygtk-2.0' found
* Package gtk+-2.0 was not found in the pkg-config
* search path. Perhaps you should add the directory
* containing `gtk+-2.0.pc' to the PKG_CONFIG_PATH
* environment variable No package 'gtk+-2.0' found
* You may need to install 'dev' package(s) to
* provide header files.
Gtk+: no
* Could not find Gtk+ headers in any of
* '/usr/local/include', '/usr/include', '.'
Mac OS X native: no
Qt: no
Qt4: Qt: 4.8.1, PyQt4: 4.9.1
PySide: no
Cairo: 1.8.8
OPTIONAL DATE/TIMEZONE DEPENDENCIES
datetime: present, version unknown
dateutil: matplotlib will provide
pytz: matplotlib will provide
adding pytz
OPTIONAL USETEX DEPENDENCIES
dvipng: 1.14
ghostscript: 9.05
latex: 3.1415926
pdftops: 0.18.4
推荐答案
感谢 peison 的评论，我检查了 matplotlib 的安装日志，它显示了很多依赖项.
Thanks to peison's comment I've checked the installation log for matplotlib and it showed lots of dependencies.
我之前没有注意到，因为使用整个安装过程运行非常快
I haven't noticed that before because the whole process of instalation ran really fast using
pip install matplotlib
并以成功安装结束.
回答问题.解决方案是安装软件包tk和tk-dev，然后重建matplotlib.
To answer the question. The solution was to install packages tk and tk-dev, and rebuild matplotlib.
这篇关于Matplotlib 后端缺少带下划线的模块的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！