Fix TypeError: cannot unpack non-iterable PDFObjRef object, when unpa…

…cking the value of 'DW2' (#529) Closes #518 * Fix TypeError: cannot unpack non-iterable PDFObjRef object, when unpacking the value of 'DW2' An error is occured when the 'DW2' key contains a PDFObjRef object instead of a list of int values, e.g: 'DW2': <PDFObjRef:152>. To solve this issue, we utilise the resolve1() function See: #518 * Updated CHANGELOG * Update CHANGELOG.md Co-authored-by: Dimitrios TSOLAKIDIS <[email protected]> Co-authored-by: Pieter Marsman <[email protected]>
pdfminer · Oct 25, 2020 · fc75972 · fc75972
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -5,11 +5,13 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## [Unreleased]
 
+### Fixed
+- Fix issue of TypeError: cannot unpack non-iterable PDFObjRef object, when unpacking the value of 'DW2' ([#529](https://github.com/pdfminer/pdfminer.six/pull/529))
+
 ## Removed
 - Support for Python 3.4 and 3.5 ([#522](https://github.com/pdfminer/pdfminer.six/pull/522))
 - Unused dependency on `sortedcontainers` package ([#525](https://github.com/pdfminer/pdfminer.six/pull/525))
 
-
 ## [20201018]
 
 ### Deprecated

diff --git a/pdfminer/pdffont.py b/pdfminer/pdffont.py
@@ -706,7 +706,7 @@ def __init__(self, rsrcmgr, spec, strict=settings.STRICT):
             widths = get_widths2(list_value(spec.get('W2', [])))
             self.disps = {cid: (vx, vy)
                           for (cid, (_, (vx, vy))) in widths.items()}
-            (vy, w) = spec.get('DW2', [880, -1000])
+            (vy, w) = resolve1(spec.get('DW2', [880, -1000]))
             self.default_disp = (None, vy)
             widths = {cid: w for (cid, (w, _)) in widths.items()}
             default_width = w