diff options
Diffstat (limited to 'share/extensions/funcplot.py')
| -rw-r--r-- | share/extensions/funcplot.py | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/share/extensions/funcplot.py b/share/extensions/funcplot.py index e5f93d430..126429853 100644 --- a/share/extensions/funcplot.py +++ b/share/extensions/funcplot.py @@ -70,10 +70,14 @@ def drawfunction(xstart, xend, ybottom, ytop, samples, width, height, left, bott ytop = (bottom+height-yzero)/scaley # functions specified by the user - if fx != "": - f = eval('lambda x: ' + fx.strip('"')) - if fpx != "": - fp = eval('lambda x: ' + fpx.strip('"')) + try: + if fx != "": + f = eval('lambda x: ' + fx.strip('"')) + if fpx != "": + fp = eval('lambda x: ' + fpx.strip('"')) + # handle incomplete/invalid function gracefully + except SyntaxError: + return [] # step is the distance between nodes on x step = (xend - xstart) / (samples-1) |