add missing None return type to all __init__ methods

pdfminer/arcfour.py

@@ -10,7 +10,7 @@
 
 class Arcfour:
 
-    def __init__(self, key: Sequence[int]):
+    def __init__(self, key: Sequence[int]) -> None:
         # because Py3 range is not indexable
         s = [i for i in range(256)]
         j = 0

pdfminer/ccitt.py

@@ -337,7 +337,7 @@ class ByteSkip(Exception):
 
     _color: int
 
-    def __init__(self, width: int, bytealign: bool = False):
+    def __init__(self, width: int, bytealign: bool = False) -> None:
         BitParser.__init__(self)
         self.width = width
         self.bytealign = bytealign
@@ -541,7 +541,7 @@ def _do_uncompressed(self, bits: str) -> None:
 class CCITTFaxDecoder(CCITTG4Parser):
 
     def __init__(self, width: int, bytealign: bool = False,
-                 reversed: bool = False):
+                 reversed: bool = False) -> None:
         CCITTG4Parser.__init__(self, width, bytealign=bytealign)
         self.reversed = reversed
         self._buf = b''
@@ -582,7 +582,7 @@ def main(argv: List[str]) -> None:
         return
 
     class Parser(CCITTG4Parser):
-        def __init__(self, width: int, bytealign: bool = False):
+        def __init__(self, width: int, bytealign: bool = False) -> None:
             import pygame  # type: ignore[import]
             CCITTG4Parser.__init__(self, width, bytealign=bytealign)
             self.img = pygame.Surface((self.width, 1000))

pdfminer/cmapdb.py

@@ -41,7 +41,7 @@ class CMapBase:
 
     debug = 0
 
-    def __init__(self, **kwargs: object):
+    def __init__(self, **kwargs: object) -> None:
         self.attrs: MutableMapping[str, object] = kwargs.copy()
         return
 
@@ -68,7 +68,7 @@ def decode(self, code: bytes) -> Iterable[int]:
 
 class CMap(CMapBase):
 
-    def __init__(self, **kwargs: Union[str, int]):
+    def __init__(self, **kwargs: Union[str, int]) -> None:
         CMapBase.__init__(self, **kwargs)
         self.code2cid: Dict[int, object] = {}
         return
@@ -142,7 +142,7 @@ def decode(self, code: bytes) -> Tuple[int, ...]:
 
 class UnicodeMap(CMapBase):
 
-    def __init__(self, **kwargs: Union[str, int]):
+    def __init__(self, **kwargs: Union[str, int]) -> None:
         CMapBase.__init__(self, **kwargs)
         self.cid2unichr: Dict[int, str] = {}
         return
@@ -200,7 +200,7 @@ def add_cid2unichr(self, cid: int, code: Union[PSLiteral, bytes, int]
 
 class PyCMap(CMap):
 
-    def __init__(self, name: str, module: Any):
+    def __init__(self, name: str, module: Any) -> None:
         super().__init__(CMapName=name)
         self.code2cid = module.CODE2CID
         if module.IS_VERTICAL:
@@ -210,7 +210,7 @@ def __init__(self, name: str, module: Any):
 
 class PyUnicodeMap(UnicodeMap):
 
-    def __init__(self, name: str, module: Any, vertical: bool):
+    def __init__(self, name: str, module: Any, vertical: bool) -> None:
         super().__init__(CMapName=name)
         if vertical:
             self.cid2unichr = module.CID2UNICHR_V
@@ -278,7 +278,7 @@ def get_unicode_map(cls, name: str, vertical: bool = False) -> UnicodeMap:
 
 class CMapParser(PSStackParser[PSKeyword]):
 
-    def __init__(self, cmap: CMapBase, fp: BinaryIO):
+    def __init__(self, cmap: CMapBase, fp: BinaryIO) -> None:
         PSStackParser.__init__(self, fp)
         self.cmap = cmap
         # some ToUnicode maps don't have "begincmap" keyword.

pdfminer/converter.py

@@ -43,7 +43,7 @@ class PDFLayoutAnalyzer(PDFTextDevice):
     ctm: Matrix
 
     def __init__(self, rsrcmgr: PDFResourceManager, pageno: int = 1,
-                 laparams: Optional[LAParams] = None):
+                 laparams: Optional[LAParams] = None) -> None:
         PDFTextDevice.__init__(self, rsrcmgr)
         self.pageno = pageno
         self.laparams = laparams
@@ -167,7 +167,7 @@ class PDFPageAggregator(PDFLayoutAnalyzer):
     def __init__(self,
                  rsrcmgr: PDFResourceManager,
                  pageno: int = 1,
-                 laparams: Optional[LAParams] = None):
+                 laparams: Optional[LAParams] = None) -> None:
         PDFLayoutAnalyzer.__init__(self, rsrcmgr, pageno=pageno,
                                    laparams=laparams)
         self.result: Optional[LTPage] = None
@@ -192,7 +192,7 @@ def __init__(self,
                  outfp: IOType,
                  codec: str = 'utf-8',
                  pageno: int = 1,
-                 laparams: Optional[LAParams] = None):
+                 laparams: Optional[LAParams] = None) -> None:
         PDFLayoutAnalyzer.__init__(self, rsrcmgr, pageno=pageno,
                                    laparams=laparams)
         self.outfp: IOType = outfp
@@ -223,7 +223,7 @@ def __init__(self,
                  pageno: int = 1,
                  laparams: Optional[LAParams] = None,
                  showpageno: bool = False,
-                 imagewriter: Optional[ImageWriter] = None):
+                 imagewriter: Optional[ImageWriter] = None) -> None:
         super().__init__(rsrcmgr, outfp, codec=codec, pageno=pageno,
                          laparams=laparams)
         self.showpageno = showpageno
@@ -299,7 +299,7 @@ def __init__(self,
                  imagewriter: Optional[ImageWriter] = None,
                  debug: int = 0,
                  rect_colors: Optional[Dict[str, str]] = None,
-                 text_colors: Optional[Dict[str, str]] = None):
+                 text_colors: Optional[Dict[str, str]] = None) -> None:
         PDFConverter.__init__(self, rsrcmgr, outfp, codec=codec, pageno=pageno,
                               laparams=laparams)
 
@@ -530,7 +530,7 @@ def __init__(self,
                  pageno: int = 1,
                  laparams: Optional[LAParams] = None,
                  imagewriter: Optional[ImageWriter] = None,
-                 stripcontrol: bool = False):
+                 stripcontrol: bool = False) -> None:
         PDFConverter.__init__(self, rsrcmgr, outfp, codec=codec, pageno=pageno,
                               laparams=laparams)
 

pdfminer/image.py

@@ -17,7 +17,8 @@ def align32(x: int) -> int:
 
 
 class BMPWriter:
-    def __init__(self, fp: BinaryIO, bits: int, width: int, height: int):
+    def __init__(self, fp: BinaryIO, bits: int, width: int, height: int
+                 ) -> None:
         self.fp = fp
         self.bits = bits
         self.width = width
@@ -65,7 +66,7 @@ class ImageWriter:
     Supports various image types: JPEG, JBIG2 and bitmaps
     """
 
-    def __init__(self, outdir: str):
+    def __init__(self, outdir: str) -> None:
         self.outdir = outdir
         if not os.path.exists(self.outdir):
             os.makedirs(self.outdir)

pdfminer/layout.py

@@ -26,7 +26,7 @@
 
 class IndexAssigner:
 
-    def __init__(self, index: int = 0):
+    def __init__(self, index: int = 0) -> None:
         self.index = index
         return
 
@@ -75,7 +75,7 @@ def __init__(self,
                  word_margin: float = 0.1,
                  boxes_flow: Optional[float] = 0.5,
                  detect_vertical: bool = False,
-                 all_texts: bool = False):
+                 all_texts: bool = False) -> None:
         self.line_overlap = line_overlap
         self.char_margin = char_margin
         self.line_margin = line_margin
@@ -127,7 +127,7 @@ def get_text(self) -> str:
 class LTComponent(LTItem):
     """Object with a bounding box"""
 
-    def __init__(self, bbox: Rect):
+    def __init__(self, bbox: Rect) -> None:
         LTItem.__init__(self)
         self.set_bbox(bbox)
         return
@@ -206,7 +206,7 @@ class LTCurve(LTComponent):
     def __init__(self, linewidth: float, pts: List[Point],
                  stroke: bool = False, fill: bool = False,
                  evenodd: bool = False, stroking_color: Optional[Color] = None,
-                 non_stroking_color: Optional[Color] = None):
+                 non_stroking_color: Optional[Color] = None) -> None:
         LTComponent.__init__(self, get_bound(pts))
         self.pts = pts
         self.linewidth = linewidth
@@ -230,7 +230,7 @@ class LTLine(LTCurve):
     def __init__(self, linewidth: float, p0: Point, p1: Point,
                  stroke: bool = False, fill: bool = False,
                  evenodd: bool = False, stroking_color: Optional[Color] = None,
-                 non_stroking_color: Optional[Color] = None):
+                 non_stroking_color: Optional[Color] = None) -> None:
         LTCurve.__init__(self, linewidth, [p0, p1], stroke, fill, evenodd,
                          stroking_color, non_stroking_color)
         return
@@ -245,7 +245,7 @@ class LTRect(LTCurve):
     def __init__(self, linewidth: float, bbox: Rect,
                  stroke: bool = False, fill: bool = False,
                  evenodd: bool = False, stroking_color: Optional[Color] = None,
-                 non_stroking_color: Optional[Color] = None):
+                 non_stroking_color: Optional[Color] = None) -> None:
         (x0, y0, x1, y1) = bbox
         LTCurve.__init__(self, linewidth,
                          [(x0, y0), (x1, y0), (x1, y1), (x0, y1)], stroke,
@@ -259,7 +259,7 @@ class LTImage(LTComponent):
     Embedded images can be in JPEG, Bitmap or JBIG2.
     """
 
-    def __init__(self, name: str, stream: PDFStream, bbox: Rect):
+    def __init__(self, name: str, stream: PDFStream, bbox: Rect) -> None:
         LTComponent.__init__(self, bbox)
         self.name = name
         self.stream = stream
@@ -286,7 +286,7 @@ class LTAnno(LTItem, LTText):
     according to the relationship between two characters (e.g. a space).
     """
 
-    def __init__(self, text: str):
+    def __init__(self, text: str) -> None:
         self._text = text
         return
 
@@ -300,7 +300,7 @@ class LTChar(LTComponent, LTText):
     def __init__(self, matrix: Matrix, font: PDFFont, fontsize: float,
                  scaling: float, rise: float, text: str, textwidth: float,
                  textdisp: Union[float, Tuple[Optional[float], float]],
-                 ncs: PDFColorSpace, graphicstate: PDFGraphicState):
+                 ncs: PDFColorSpace, graphicstate: PDFGraphicState) -> None:
         LTText.__init__(self)
         self._text = text
         self.matrix = matrix
@@ -360,7 +360,7 @@ def is_compatible(self, obj: object) -> bool:
 class LTContainer(LTComponent, Generic[LTItemT]):
     """Object that can be extended and analyzed"""
 
-    def __init__(self, bbox: Rect):
+    def __init__(self, bbox: Rect) -> None:
         LTComponent.__init__(self, bbox)
         self._objs: List[LTItemT] = []
         return
@@ -421,7 +421,7 @@ class LTTextLine(LTTextContainer[TextLineElement]):
     the text's writing mode.
     """
 
-    def __init__(self, word_margin: float):
+    def __init__(self, word_margin: float) -> None:
         super().__init__()
         self.word_margin = word_margin
         return
@@ -442,7 +442,7 @@ def find_neighbors(self, plane: Plane[LTComponentT], ratio: float
 
 
 class LTTextLineHorizontal(LTTextLine):
-    def __init__(self, word_margin: float):
+    def __init__(self, word_margin: float) -> None:
         LTTextLine.__init__(self, word_margin)
         self._x1: float = +INF
         return
@@ -505,7 +505,7 @@ def _is_same_height_as(self, other: LTComponent, tolerance: float = 0
 
 
 class LTTextLineVertical(LTTextLine):
-    def __init__(self, word_margin: float):
+    def __init__(self, word_margin: float) -> None:
         LTTextLine.__init__(self, word_margin)
         self._y0: float = -INF
         return
@@ -612,7 +612,7 @@ def get_writing_mode(self) -> str:
 
 
 class LTTextGroup(LTTextContainer[TextGroupElement]):
-    def __init__(self, objs: Iterable[TextGroupElement]):
+    def __init__(self, objs: Iterable[TextGroupElement]) -> None:
         super().__init__()
         self.extend(objs)
         return
@@ -643,7 +643,7 @@ def analyze(self, laparams: LAParams) -> None:
 
 
 class LTLayoutContainer(LTContainer[LTComponent]):
-    def __init__(self, bbox: Rect):
+    def __init__(self, bbox: Rect) -> None:
         LTContainer.__init__(self, bbox)
         self.groups: Optional[List[LTTextGroup]] = None
         return
@@ -886,7 +886,7 @@ class LTFigure(LTLayoutContainer):
     recursively.
     """
 
-    def __init__(self, name: str, bbox: Rect, matrix: Matrix):
+    def __init__(self, name: str, bbox: Rect, matrix: Matrix) -> None:
         self.name = name
         self.matrix = matrix
         (x, y, w, h) = bbox
@@ -914,7 +914,7 @@ class LTPage(LTLayoutContainer):
     LTCurve and LTLine.
     """
 
-    def __init__(self, pageid: int, bbox: Rect, rotate: float = 0):
+    def __init__(self, pageid: int, bbox: Rect, rotate: float = 0) -> None:
         LTLayoutContainer.__init__(self, bbox)
         self.pageid = pageid
         self.rotate = rotate

pdfminer/lzw.py

@@ -12,7 +12,7 @@ class CorruptDataError(Exception):
 
 class LZWDecoder:
 
-    def __init__(self, fp: BinaryIO):
+    def __init__(self, fp: BinaryIO) -> None:
         self.fp = fp
         self.buff = 0
         self.bpos = 8

pdfminer/pdfcolor.py

@@ -10,7 +10,7 @@
 
 class PDFColorSpace:
 
-    def __init__(self, name: str, ncomponents: int):
+    def __init__(self, name: str, ncomponents: int) -> None:
         self.name = name
         self.ncomponents = ncomponents
         return

pdfminer/pdfdevice.py

@@ -23,7 +23,7 @@ class PDFDevice:
     """Translate the output of PDFPageInterpreter to the output that is needed
     """
 
-    def __init__(self, rsrcmgr: "PDFResourceManager"):
+    def __init__(self, rsrcmgr: "PDFResourceManager") -> None:
         self.rsrcmgr = rsrcmgr
         self.ctm: Optional[Matrix] = None
         return
@@ -168,7 +168,7 @@ def render_char(self, matrix: Matrix, font: PDFFont, fontsize: float,
 class TagExtractor(PDFDevice):
 
     def __init__(self, rsrcmgr: "PDFResourceManager", outfp: BinaryIO,
-                 codec: str = 'utf-8'):
+                 codec: str = 'utf-8') -> None:
         PDFDevice.__init__(self, rsrcmgr)
         self.outfp = outfp
         self.codec = codec

pdfminer/pdfdocument.py

@@ -305,7 +305,7 @@ class PDFStandardSecurityHandler:
     supported_revisions: Tuple[int, ...] = (2, 3)
 
     def __init__(self, docid: Sequence[bytes], param: Dict[str, Any],
-                 password: str = ''):
+                 password: str = '') -> None:
         self.docid = docid
         self.param = param
         self.password = password
@@ -576,7 +576,7 @@ class PDFDocument:
     }
 
     def __init__(self, parser: PDFParser, password: str = '',
-                 caching: bool = True, fallback: bool = True):
+                 caching: bool = True, fallback: bool = True) -> None:
         "Set the document to use a given PDFParser object."
         self.caching = caching
         self.xrefs: List[PDFBaseXRef] = []