Gives this object boolean behaviors (in Python 3). bool(line_source) is False if it contains the empty string or whitespace only.

Return True when part identified by `pack_uri` is present in package.

Must be implemented by each subclass.

Return True when part identified by `pack_uri` is present in zip archive.

Return True when part identified by `pack_uri` is present in zip archive.

Implement 'in' operation, like `"rId7" in relationships`.

Enable use as a context-manager. Opening zip for writing happens here.

Return |True| if this proxy object refers to the same oxml element as does *other*. ElementProxy objects are value objects and should maintai

|True| if this object proxies the same element as `other`. Equality for proxy objects is defined as referring to the same XML element, whethe

|True| if this shape object proxies the same element as *other*. Equality for proxy objects is defined as referring to the same XML element,

Close the zip archive on exit from context. Closing flushes any pending physical writes and releasing any resources it's using.

Called on each access of 'fget' attribute on class or instance. *self* is this instance of a lazyproperty descriptor "wrapping" the property

Intercept attribute access to generalize "with_{xmlattr_name}()" methods.

Provide indexed access, (e.g. 'slides[0]').

Provides indexed access, e.g. `slide_layouts[2]`.

Provides indexed access, e.g. `slide_masters[2]`.

Provides indexed access, (e.g. 'cells[0]').

Provides indexed access, (e.g. 'columns[0]').

Provides indexed access, (e.g. 'rows[0]').

Return shape at `idx` in sequence, e.g. `shapes[2]`.

Access placeholder shape having `idx`. Note that while this looks like list access, idx is actually a dictionary key and will raise |

Provides indexed access, (e.g. 'adjustments[9]').

Return bytes for part corresponding to `pack_uri`.

Blob for part corresponding to `pack_uri`.

Return bytes of file corresponding to `pack_uri` in package directory.

Return bytes for part corresponding to `pack_uri`. Raises |KeyError| if no matching member is present in zip archive.

Return content-type (MIME-type) for part identified by *partname*.

Implement relationship lookup by rId using indexed access, like rels[rId].