Remove pil (pyecharts#755)

* Remove: 移除 pillow 作为必要依赖 * Docs: 文档更新 * Update: Remove -> Removed
neverload · Sep 9, 2018 · a09feee · a09feee
1 parent 804f82b
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Showing 3 changed files with 8 additions and 4 deletions.
diff --git a/docs/zh-cn/changelog.md b/docs/zh-cn/changelog.md
@@ -3,13 +3,16 @@
 * ### version 0.6.0（dev）
     * TODO
 
-* ### version 0.5.11 - （dev）
+* ### version 0.5.11 - 2018.9.9（current）
 
     #### Added
     * [issue#731](https://github.com/pyecharts/pyecharts/issues/731) 新增 `mark_point_raw`, `mark_line_raw` 配置项用于个性化展示标记。
 
     #### Fixed
     * [issue#738](https://github.com/pyecharts/pyecharts/issues/738) 支持设置 Grid, Overlay 和 Timeline 某选项为空 (null)
+
+    #### Removed
+    * 移除 pillow 作为默认依赖，需要用到 Scatter.draw 方法的开发者请先自行安装 pillow。
 
 
 * ### version 0.5.10 - 2018.9.4

diff --git a/pyecharts/charts/scatter.py b/pyecharts/charts/scatter.py
@@ -1,7 +1,5 @@
 # coding=utf-8
 
-from PIL import Image
-
 from pyecharts.chart import Chart
 
 
@@ -91,6 +89,10 @@ def draw(self, path, color=None):
         :return:
             转换后的数组
         """
+        try:
+            from PIL import Image
+        except ImportError:
+            raise
         color = color or (255, 255, 255)
         im = Image.open(path)
         width, height = im.size

diff --git a/requirements.txt b/requirements.txt
@@ -1,6 +1,5 @@
 jinja2>=2.8
 future
-pillow
 lml>=0.0.2
 jupyter-echarts-pypkg>=0.1.1
 pyecharts-javascripthon