Question

我正在写一个脚本，在我的脚本中我有这个功能：

def insert_image(cursor, object_id, sku):
    product_obj = core.Object.get(object_id)
    string_sku = str(sku)
    folder = string_sku[0] + string_sku[1] + string_sku[2]
    found_url = False
    # KLUDGE This is ugly and redundant, however putting this in an if elif elif else throws error when url not found
    # try this url first
    try urllib.urlopen("http://<path to images>/%s/%sPR-IT,PM.jpg" % (folder, sku)):
        urllib.URLopener().retrieve("http://<path to images>/%s/%sPR-IT,PM.jpg" % (folder, sku), "%sPR-IT,PM.jpg" % (sku))
        found_url = True
    except:
        found_url = False
    # If that one didn't work try this one
    if found_url == False:
        try urllib.urlopen("http://<path to images>/%s/%sPK-PT,PM.jpg" % (folder, sku)):
            urllib.URLopener().retrieve("http://<path to images>/%s/%sPK-PT,PM.jpg" % (folder, sku), "%sPK-PT,PM.jpg" % (sku))
            found_url = True
        except:
            found_url = False
    # If still nothing, one last attempt
    if found_url == False:
        try urllib.urlopen("http://<path to images>/%s/%sCC-PT,IM.jpg" % (folder, sku)):
            urllib.URLopener().retrieve("http://<path to images>/%s/%sCC-PT,IM.jpg" % (folder, sku), "%sCC-PT,IM.jpg" % (sku))
            found_url = True
        except:
            found_url = False
    # We failed to find an image for this product, it will have to be done manually
    if found_url == False:
        log.info("Could not find the image on notions")
        return False

    # Hey we found something! Open the image....
    send_image = open('%sPK-PT,PM.jpg' % sku, 'r')
    # ...and send it for processing
    if product_obj.set_image(send_image, 5, 1) == False:
        return False
    else:
        log.debug("Inserted Image")
        return True

这个工作正常，直到我添加了试试捕获。我确实有if，elif，函数运行得很好。这是我的电话和在它之前运行的代码：

   if rollback == False:
        # Nah -- it's all good SAVE IT!
        count += 1
        log.debug("INSERT %s" % count)
        conn.commit()
    else:
        # Yeah something went wrong, errors reported why, roll it back
        conn.rollback()
        log.debug("skipped %s" % skip_count)

  # Insert images
        if rollback == False:
            sku = row[0]
            if insert_image(cursor, object_id, sku) == False:
                log.error("Could not get the image inserted for product: %s" % object_id)
                conn.rollback()
            else:
                conn.commit()

我的错误是：

16:33:46,153 DEBUG [pylons-admin] Inserted Description
16:33:46,164 DEBUG [pylons-admin] Inserted Attributes
16:33:46,164 DEBUG [pylons-admin] INSERT 1
Traceback (most recent call last):
File "<console>", line 47, in <module>
NameError: name 'insert_image' is not defined

我不知道47行是什么意思，因为调用是在2101行，再次添加trys之前，它发现函数就好了。当我在调用insert_image之后提交之前添加了你现在看到的trys时，我还将第一次提交切换到insert_image调用之前。我检查了缩进，空格和标签没有用。

我使用TextMate，当我从TextMate运行脚本时，我在这里遇到语法错误：

 try urllib.urlopen("http://<path to images>/%s/%sPR-IT,PM.jpg" % (folder, sku)):

它指向（on（文件夹......但我没看到我在哪里有语法错误。请帮助。我已经在这个脚本上工作了几个星期了，这应该是最后一次测试并调用它完成：（

Answer 1

您的函数中存在语法错误：

try urllib.urlopen("http://<path to images>/%s/%sPR-IT,PM.jpg" % (folder, sku)):
        urllib.URLopener().retrieve("http://<path to images>/%s/%sPR-IT,PM.jpg" % (folder, sku), "%sPR-IT,PM.jpg" % (sku))
        found_url = True
    except:
        found_url = False

应该是：

try:
    urllib.urlopen("http://<path to images>/%s/%sPR-IT,PM.jpg" % (folder, sku)):
    urllib.URLopener().retrieve("http://<path to images>/%s/%sPR-IT,PM.jpg" % (folder, sku), "%sPR-IT,PM.jpg" % (sku))
    found_url = True
except:
    found_url = False

你也有一些广泛的捕获，捕获那些语法错误并隐藏错误，但insert_image没有这样定义。永远不要单独使用except:，始终放置要捕获的异常名称。否则你也会遇到像SyntaxError这样的东西，这是非常危险的。

Answer 2

这听起来像你在方法之前有空白问题。不正确的空格将它移到了正常的代码路径之外，如果它在一个类中，它可能看起来不再是在类中

函数未定义但确实已定义

2 个答案: