Django和python-docx

时间:2013-11-26 07:22:14

标签: python django python-docx

我正在尝试通过python-docx和django创建一个docx文件。

直接使用python运行示例脚本(example-makedocument.py)。 a.k.a“工作副本”。它按预期生成示例docx文件。

我接着尝试将example-makedocument.py代码移动到Django视图中。这篇文章底部的代码是该视图的代码。你会看到我在前面进行了一些小修改,但通常没有改变。

运行此视图时,我收到有关无法找到图像文件的错误。

[Errno 2] No such file or directory: 'image1.png'

我有:

  • 确保文件夹/文件结构与工作副本相同(它需要子文件夹才能正常工作)
  • 我尝试将docx.py template_dir硬编码到保存文件夹/文件的位置(我已经检查过这些结果指向与工作副本相同的最终路径)
  • 我已从示例中删除了图片,但会导致错误local variable 'contenttypes' referenced before assignment

我认为它与路径有关,但我不确定为什么/如何?有人可以帮忙吗?

完整的python-docx代码here

我的观点:

from myapp.libs.docx.docx import *
# ** commented out below line, replaced with above **
#from docx import *

def export_docx(request):

# ** commented out below line **
#if __name__ == '__main__':
    # Default set of relationshipships - the minimum components of a document
    relationships = relationshiplist()

    # Make a new document tree - this is the main part of a Word document
    document = newdocument()

    # This xpath location is where most interesting content lives
    body = document.xpath('/w:document/w:body', namespaces=nsprefixes)[0]

    # Append two headings and a paragraph
    body.append(heading("Welcome to Python's docx module", 1))
    body.append(heading('Make and edit docx in 200 lines of pure Python', 2))
    body.append(paragraph('The module was created when I was looking for a '
        'Python support for MS Word .doc files on PyPI and Stackoverflow. '
        'Unfortunately, the only solutions I could find used:'))

    # Add a numbered list
    points = [ 'COM automation'
             , '.net or Java'
             , 'Automating OpenOffice or MS Office'
             ]
    for point in points:
        body.append(paragraph(point, style='ListNumber'))
    body.append(paragraph('For those of us who prefer something simpler, I '
                          'made docx.'))
    body.append(heading('Making documents', 2))
    body.append(paragraph('The docx module has the following features:'))

    # Add some bullets
    points = ['Paragraphs', 'Bullets', 'Numbered lists',
              'Multiple levels of headings', 'Tables', 'Document Properties']
    for point in points:
        body.append(paragraph(point, style='ListBullet'))

    body.append(paragraph('Tables are just lists of lists, like this:'))
    # Append a table
    tbl_rows = [ ['A1', 'A2', 'A3']
               , ['B1', 'B2', 'B3']
               , ['C1', 'C2', 'C3']
               ]
    body.append(table(tbl_rows))

    body.append(heading('Editing documents', 2))
    body.append(paragraph('Thanks to the awesomeness of the lxml module, '
                          'we can:'))
    points = [ 'Search and replace'
             , 'Extract plain text of document'
             , 'Add and delete items anywhere within the document'
             ]
    for point in points:
        body.append(paragraph(point, style='ListBullet'))

    # Add an image
    relationships, picpara = picture(relationships, 'image1.png',
                                     'This is a test description')
    body.append(picpara)

    # Search and replace
    print 'Searching for something in a paragraph ...',
    if search(body, 'the awesomeness'):
        print 'found it!'
    else:
        print 'nope.'

    print 'Searching for something in a heading ...',
    if search(body, '200 lines'):
        print 'found it!'
    else:
        print 'nope.'

    print 'Replacing ...',
    body = replace(body, 'the awesomeness', 'the goshdarned awesomeness')
    print 'done.'

    # Add a pagebreak
    body.append(pagebreak(type='page', orient='portrait'))

    body.append(heading('Ideas? Questions? Want to contribute?', 2))
    body.append(paragraph('Email <python.docx@librelist.com>'))

    # Create our properties, contenttypes, and other support files
    title    = 'Python docx demo'
    subject  = 'A practical example of making docx from Python'
    creator  = 'Mike MacCana'
    keywords = ['python', 'Office Open XML', 'Word']

    coreprops = coreproperties(title=title, subject=subject, creator=creator,
                               keywords=keywords)
    appprops = appproperties()
    contenttypes = contenttypes()
    websettings = websettings()
    wordrelationships = wordrelationships(relationships)

    # Save our document
    savedocx(document, coreprops, appprops, contenttypes, websettings,
             wordrelationships, 'Welcome to the Python docx module.docx')

======

更新。我在下面找到的解决方案的详细信息。

docx.py代码假设路径不同于它。这导致image1.png文件“丢失”。完成以下步骤为我解决了这个问题。

  1. 编辑docx.py文件并添加了一个变量:

    docx_dir ='/ path / to / docx / folder'

  2. 编辑以下行(docx.py)以使用上述变量(显示的大致行数与原始来源略有不同)

    1. shutil.copyfile(join(docx_dir,picname),join(media_dir,picname))
    2. pixelwidth,pixelheight = Image.open(join(docx_dir,picname))。size [0:2]
  3. 以上摆脱了路径问题。但现在我遇到了错误local variable 'contenttypes' referenced before assignment。我发现错误的解决不是与路径有关,而是重复的名称(我不完全理解为什么这仍然存在)。

  4. 注意:下面的代码位于我的视图中或..如果与example-makedocument.py

    中的原始来源相比较

    在:

    contenttypes = contenttypes()
    websettings = websettings()
    wordrelationships = wordrelationships(relationships)
    

    后:

    contentt = contenttypes()
    webs = websettings()
    wordr = wordrelationships(relationships)
    
    # Save our document
    savedocx(document, coreprops, appprops, contentt, webs,
             wordr, 'Welcome to the Python docx module.docx')
    

2 个答案:

答案 0 :(得分:2)

image1.png必须位于正在运行的Python程序的当前目录中,或者作为正在运行的程序的当前目录的相对路径,或者不太便于携带,但可能更容易上班,它可以是以绝对路径给出。

特别是,我认为你可能会发现这篇文章中给出的答案最有帮助:Python's working directory when running with WSGI and Apache(用于动态计算image.png的绝对路径。

答案 1 :(得分:1)

自上面编写的代码以来,python-docx模块已经有所改变。现在,在django中添加图像将是这样的:

from docx import *
from docx.shared import Inches
document = Document()
document.add_picture((r'%s/static/images/my-header.png' % (settings.PROJECT_PATH)), width=Inches(4))